Zephyr Posted November 10, 2007 Share Posted November 10, 2007 Myles, my amp is beginning to make a funny noise that occurs once in a while. I'm plugged straight into my Fender Deluxe Reverb's Vibrato channel with the volume on 3. The noise sounds like a wind is blowing through the amp. What I mean by that is the amp is putting out a sound that is reminiscent of a windy day. Weird huh? When I try to play with it, my guitar is barely audible. Is it picking up some interference of some sort, or am I going to have a problem on my hands soon? Quote Never argue with an idiot. They'll bring you down to their level and beat you with experience. http://www.soundclick.com/bands/default.cfm?bandID=810593 http://www.myspace.com/dandelavega Link to comment Share on other sites More sharing options...
myles_rose Posted November 11, 2007 Author Share Posted November 11, 2007 Myles, my amp is beginning to make a funny noise that occurs once in a while. I'm plugged straight into my Fender Deluxe Reverb's Vibrato channel with the volume on 3. The noise sounds like a wind is blowing through the amp. What I mean by that is the amp is putting out a sound that is reminiscent of a windy day. Weird huh? When I try to play with it, my guitar is barely audible. Is it picking up some interference of some sort, or am I going to have a problem on my hands soon? Check your preamp tubes and replace one that is probably bad. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Zephyr Posted November 13, 2007 Share Posted November 13, 2007 Myles, my amp is beginning to make a funny noise that occurs once in a while. I'm plugged straight into my Fender Deluxe Reverb's Vibrato channel with the volume on 3. The noise sounds like a wind is blowing through the amp. What I mean by that is the amp is putting out a sound that is reminiscent of a windy day. Weird huh? When I try to play with it, my guitar is barely audible. Is it picking up some interference of some sort, or am I going to have a problem on my hands soon? Check your preamp tubes and replace one that is probably bad. Would it be a problem if I had previously removed the 12ax7 in the V1 pos.? On another note, How would I systematically check which tube is the problem? Quote Never argue with an idiot. They'll bring you down to their level and beat you with experience. http://www.soundclick.com/bands/default.cfm?bandID=810593 http://www.myspace.com/dandelavega Link to comment Share on other sites More sharing options...
myles_rose Posted November 13, 2007 Author Share Posted November 13, 2007 Myles, my amp is beginning to make a funny noise that occurs once in a while. I'm plugged straight into my Fender Deluxe Reverb's Vibrato channel with the volume on 3. The noise sounds like a wind is blowing through the amp. What I mean by that is the amp is putting out a sound that is reminiscent of a windy day. Weird huh? When I try to play with it, my guitar is barely audible. Is it picking up some interference of some sort, or am I going to have a problem on my hands soon? Check your preamp tubes and replace one that is probably bad. Would it be a problem if I had previously removed the 12ax7 in the V1 pos.? On another note, How would I systematically check which tube is the problem? Take 1 known good 12AX7 and try it in each position replacing the tube that is currently there. One position at a time. Don't try to rush things. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Zephyr Posted November 13, 2007 Share Posted November 13, 2007 Okay, thanks Myles, but for arguments sake, let's say it's the phase inverter. Would I have to replace the power tubes, or is it only when replacing the power tubes you change the PI? Quote Never argue with an idiot. They'll bring you down to their level and beat you with experience. http://www.soundclick.com/bands/default.cfm?bandID=810593 http://www.myspace.com/dandelavega Link to comment Share on other sites More sharing options...
myles_rose Posted November 14, 2007 Author Share Posted November 14, 2007 Okay, thanks Myles, but for arguments sake, let's say it's the phase inverter. Would I have to replace the power tubes, or is it only when replacing the power tubes you change the PI? You do not have to change power tubes when changing the phase inverter. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Junior 1 Posted November 20, 2007 Share Posted November 20, 2007 Hi Myles, I play through a Valve Junior head and an 8 ohm 12 inch cabinet. I just picked up an additional 8 ohm 12 inch cabinet and was wondering if I can use a 1/4 inch splitter with 2 female ends, plugged into the 4 ohm output on the VJ, then into the 2 8 ohm cabs. I'm assuming the splitter would put the cabs in parallel. What do you think? Thank You Anthony Quote Link to comment Share on other sites More sharing options...
myles_rose Posted November 20, 2007 Author Share Posted November 20, 2007 Hi Myles, I play through a Valve Junior head and an 8 ohm 12 inch cabinet. I just picked up an additional 8 ohm 12 inch cabinet and was wondering if I can use a 1/4 inch splitter with 2 female ends, plugged into the 4 ohm output on the VJ, then into the 2 8 ohm cabs. I'm assuming the splitter would put the cabs in parallel. What do you think? Thank You Anthony The splitter will put the cabs in parallel. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Junior 1 Posted November 21, 2007 Share Posted November 21, 2007 Thanks Myles.Anthony Quote Link to comment Share on other sites More sharing options...
Greg B. Posted November 22, 2007 Share Posted November 22, 2007 Myles, I'm back on the road again to getting another amp. The '94 Fender Concert that I got on ebay was damaged and they are going to refund me, so here I go again. I am going to get used, cause I can get more amp for the $$. I am looking at the Yamaha T50C (Soldano designed), the Seymour Duncan Convertible (60 or 100 watt, either one), and the Carvin X30 or X60. I have played each one, so sonically, I know what I am getting. Do you have any thoughts on any of these, good, bad, or indifferent? Reliability, potential problems, things to look out for, etc. Thanks and have a great holiday. Quote Avoid playing the amplifier at a volume setting high enough to produce a distorted sound through the speaker-Fender Guitar Course-1966 Link to comment Share on other sites More sharing options...
myles_rose Posted November 22, 2007 Author Share Posted November 22, 2007 Myles, I'm back on the road again to getting another amp. The '94 Fender Concert that I got on ebay was damaged and they are going to refund me, so here I go again. I am going to get used, cause I can get more amp for the $$. I am looking at the Yamaha T50C (Soldano designed), the Seymour Duncan Convertible (60 or 100 watt, either one), and the Carvin X30 or X60. I have played each one, so sonically, I know what I am getting. Do you have any thoughts on any of these, good, bad, or indifferent? Reliability, potential problems, things to look out for, etc. Thanks and have a great holiday. It will all boil down to personal taste but the Duncan amps can have reliability issues and the modules on the convertible are hard to find .... Westwood Music in West L.A. was the only place I ever saw any and that was years ago. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Caevan O’Shite Posted November 23, 2007 Share Posted November 23, 2007 Myles, I'm back on the road again to getting another amp. The '94 Fender Concert that I got on ebay was damaged and they are going to refund me, so here I go again. I am going to get used, cause I can get more amp for the $$. I am looking at the Yamaha T50C (Soldano designed), the Seymour Duncan Convertible (60 or 100 watt, either one), and the Carvin X30 or X60. I have played each one, so sonically, I know what I am getting. Do you have any thoughts on any of these, good, bad, or indifferent? Reliability, potential problems, things to look out for, etc. Thanks and have a great holiday. It will all boil down to personal taste but the Duncan amps can have reliability issues and the modules on the convertible are hard to find .... Westwood Music in West L.A. was the only place I ever saw any and that was years ago. Throwing my two-cents in here, of two people I've talked to in person over the years who had used those SD Convertible amps, both used them in gigging cover bands and BOTH cited reliability issues, and then some. Quote Ask yourself- What Would Ren and Stimpy Do? ~ Caevan James-Michael Miller-O'Shite ~ _ ___ _ Leprechaun, Esquire _ ___ _ Link to comment Share on other sites More sharing options...
Greg B. Posted November 23, 2007 Share Posted November 23, 2007 Myles, I'm back on the road again to getting another amp. The '94 Fender Concert that I got on ebay was damaged and they are going to refund me, so here I go again. I am going to get used, cause I can get more amp for the $$. I am looking at the Yamaha T50C (Soldano designed), the Seymour Duncan Convertible (60 or 100 watt, either one), and the Carvin X30 or X60. I have played each one, so sonically, I know what I am getting. Do you have any thoughts on any of these, good, bad, or indifferent? Reliability, potential problems, things to look out for, etc. Thanks and have a great holiday. It will all boil down to personal taste but the Duncan amps can have reliability issues and the modules on the convertible are hard to find .... Westwood Music in West L.A. was the only place I ever saw any and that was years ago. Throwing my two-cents in here, of two people I've talked to in person over the years who had used those SD Convertible amps, both used them in gigging cover bands and BOTH cited reliability issues, and then some. Thank you both, Myles & Cav. Quote Avoid playing the amplifier at a volume setting high enough to produce a distorted sound through the speaker-Fender Guitar Course-1966 Link to comment Share on other sites More sharing options...
kramerscw Posted November 29, 2007 Share Posted November 29, 2007 I am new to GP forums and I am very excited about the resource. I own a 1985 Laney AOR 100. 4 EL84's and 4 12AX7's. How many hours do you think at medium to loud volumes I can go before I should replace the tubes? What replacement tubes might you recommend for a vintage or classic clean tone. Thanks for your time! Quote Scott W Link to comment Share on other sites More sharing options...
myles_rose Posted November 29, 2007 Author Share Posted November 29, 2007 I am new to GP forums and I am very excited about the resource. I own a 1985 Laney AOR 100. 4 EL84's and 4 12AX7's. How many hours do you think at medium to loud volumes I can go before I should replace the tubes? What replacement tubes might you recommend for a vintage or classic clean tone. Thanks for your time! Preamp tubes will generally last years. EL84's on cathode biased amps I replace every 300 hours. I use EL84S in a 5 or 6 rating Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Zephyr Posted December 4, 2007 Share Posted December 4, 2007 Hey Myles, I've replaced V2 and V4 with fresh Tung Sol 12AX7's, and I put a working tube (hopefull) in V5. (and I had removed the tube in V1 for a quicker breakup, if that really affects anything) However, the problem still occurs (see below). When i lightly hit the amp on the top, the problem stops, or when i turn it on standby and back on, the problem also stops. Is a socket or something loose, or do I need to change more tubes? Myles, my amp is beginning to make a funny noise that occurs once in a while. I'm plugged straight into my Fender Deluxe Reverb's Vibrato channel with the volume on 3. The noise sounds like a wind is blowing through the amp. What I mean by that is the amp is putting out a sound that is reminiscent of a windy day. Weird huh? When I try to play with it, my guitar is barely audible. Is it picking up some interference of some sort, or am I going to have a problem on my hands soon? Check your preamp tubes and replace one that is probably bad. Would it be a problem if I had previously removed the 12ax7 in the V1 pos.? On another note, How would I systematically check which tube is the problem? Take 1 known good 12AX7 and try it in each position replacing the tube that is currently there. One position at a time. Don't try to rush things. Quote Never argue with an idiot. They'll bring you down to their level and beat you with experience. http://www.soundclick.com/bands/default.cfm?bandID=810593 http://www.myspace.com/dandelavega Link to comment Share on other sites More sharing options...
myles_rose Posted December 4, 2007 Author Share Posted December 4, 2007 Hey Myles, I've replaced V2 and V4 with fresh Tung Sol 12AX7's, and I put a working tube (hopefull) in V5. (and I had removed the tube in V1 for a quicker breakup, if that really affects anything) However, the problem still occurs (see below). When i lightly hit the amp on the top, the problem stops, or when i turn it on standby and back on, the problem also stops. Is a socket or something loose, or do I need to change more tubes? Myles, my amp is beginning to make a funny noise that occurs once in a while. I'm plugged straight into my Fender Deluxe Reverb's Vibrato channel with the volume on 3. The noise sounds like a wind is blowing through the amp. What I mean by that is the amp is putting out a sound that is reminiscent of a windy day. Weird huh? When I try to play with it, my guitar is barely audible. Is it picking up some interference of some sort, or am I going to have a problem on my hands soon? Check your preamp tubes and replace one that is probably bad. Would it be a problem if I had previously removed the 12ax7 in the V1 pos.? On another note, How would I systematically check which tube is the problem? Take 1 known good 12AX7 and try it in each position replacing the tube that is currently there. One position at a time. Don't try to rush things. Something is loose. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Zephyr Posted December 4, 2007 Share Posted December 4, 2007 What would your guess be as to what it is? Quote Never argue with an idiot. They'll bring you down to their level and beat you with experience. http://www.soundclick.com/bands/default.cfm?bandID=810593 http://www.myspace.com/dandelavega Link to comment Share on other sites More sharing options...
myles_rose Posted December 4, 2007 Author Share Posted December 4, 2007 What would your guess be as to what it is? It could be anything. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Zephyr Posted December 4, 2007 Share Posted December 4, 2007 LOL, okay Myles, what can I, an amp novice do about it? Quote Never argue with an idiot. They'll bring you down to their level and beat you with experience. http://www.soundclick.com/bands/default.cfm?bandID=810593 http://www.myspace.com/dandelavega Link to comment Share on other sites More sharing options...
Caevan O’Shite Posted December 5, 2007 Share Posted December 5, 2007 LOL, okay Myles, what can I, an amp novice do about it? Can I butt-in and recommend a good book? (I do so because it would be plagiarism to copy or quote the source-book...) How To Service Your Own Tube Amp by Tom Mitchell has some excellent trouble-shooting flow-charts and tips addressing common problems. Step through the one that applies and you're much more likely to locate the cause; certainly with less frustration. It is clearly and logically written and organized. Stewart-MacDonald has 'em in stock; well worth the cost, you'll likely refer to it over and over again. Quote Ask yourself- What Would Ren and Stimpy Do? ~ Caevan James-Michael Miller-O'Shite ~ _ ___ _ Leprechaun, Esquire _ ___ _ Link to comment Share on other sites More sharing options...
myles_rose Posted December 5, 2007 Author Share Posted December 5, 2007 LOL, okay Myles, what can I, an amp novice do about it? Take it to a tech if you want it fixed fast or look at the post above about the book or go to my website and on the first page you will see a reference to a book by Dave Hunter and get that book. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Greg B. Posted December 8, 2007 Share Posted December 8, 2007 Myles, I recently got a Carvin Valvemaster (Series II) 2x12 combo. It is in great shape and sounds amazing. It says that the 2 speaker jacks are parallel. One is for the internal speakers and one for running a separate cabinet. I don't plan on using a cabinet with it, so what should I set the switch to for the internal speakers? BTW, the speakers are 8 ohm Celestions. The positive wire goes from the jack to one speaker, then another wire to the other speaker. Same with the negative wire. Quote Avoid playing the amplifier at a volume setting high enough to produce a distorted sound through the speaker-Fender Guitar Course-1966 Link to comment Share on other sites More sharing options...
myles_rose Posted December 8, 2007 Author Share Posted December 8, 2007 Myles, I recently got a Carvin Valvemaster (Series II) 2x12 combo. It is in great shape and sounds amazing. It says that the 2 speaker jacks are parallel. One is for the internal speakers and one for running a separate cabinet. I don't plan on using a cabinet with it, so what should I set the switch to for the internal speakers? BTW, the speakers are 8 ohm Celestions. The positive wire goes from the jack to one speaker, then another wire to the other speaker. Same with the negative wire. Measure the speaker plug that goes into the amp with an ohm meter to verify whether the internal speakers are wired in parallel or series first off. Where was the amp set as delivered? Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Greg B. Posted December 8, 2007 Share Posted December 8, 2007 I'll have to check tomorrow, the batteries in my tester have crapped out. I take it that whatever reading there is, is what I should set the switch to? I think that it was set on 8 ohms, but my 6 year old might have switched it. Quote Avoid playing the amplifier at a volume setting high enough to produce a distorted sound through the speaker-Fender Guitar Course-1966 Link to comment Share on other sites More sharing options...
myles_rose Posted December 8, 2007 Author Share Posted December 8, 2007 I'll have to check tomorrow, the batteries in my tester have crapped out. I take it that whatever reading there is, is what I should set the switch to? I think that it was set on 8 ohms, but my 6 year old might have switched it. It will read a bit lower .... maybe 7.2 ohms or so for an 8 ohm load. The reason for the difference is that speakers are an inductive load rather than a simple resistive load. Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Greg B. Posted December 8, 2007 Share Posted December 8, 2007 Thank you very much. Quote Avoid playing the amplifier at a volume setting high enough to produce a distorted sound through the speaker-Fender Guitar Course-1966 Link to comment Share on other sites More sharing options...
Junior 1 Posted December 17, 2007 Share Posted December 17, 2007 Hi Myles, not too long ago, I bought an as is Epiphone Valve Special 5 watt tube amp. All it did was squeel. I put in new tubes and got that famous VJ 60 cycle hum, but when a guitar was plugged in nothing comes out unless the gain and volume are pegged and then it can barely be heard. Any ideas? Thanks Anthony Quote Link to comment Share on other sites More sharing options...
myles_rose Posted December 17, 2007 Author Share Posted December 17, 2007 Hi Myles, not too long ago, I bought an as is Epiphone Valve Special 5 watt tube amp. All it did was squeel. I put in new tubes and got that famous VJ 60 cycle hum, but when a guitar was plugged in nothing comes out unless the gain and volume are pegged and then it can barely be heard. Any ideas? Thanks Anthony Anthony, This could be a lot of things. Guitar cord OK? Known good tubes? (even if new one could be bad). Quote Myles S. Rose www.guitaramplifierblueprinting.com www.la-economy.blogspot.com www.facebook.com/mylesr www.twitter.com/myles111us Link to comment Share on other sites More sharing options...
Junior 1 Posted December 17, 2007 Share Posted December 17, 2007 Yes, the cords are all good, and I had the tubes in a VJ head and they worked fine. Thanks Anthony Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.