Hey Martyn, Great re-work of a questionably designed amp. I guess you decided to leave the heater voltage alone..? Your play at the end is always the best part.
Hello David, thank you. Yes, I was in two minds what to do about the heater voltage. It's hard to say how much it will shorten the life of the tubes. They will certainly last a lot longer now it is biased correctly. Thanks David and take care.
Cracking repair, those loose valve sockets would have started crackling eventually and possibly even dropped a tube. The power tubes retainer springs seemed to have no top bracket? Great tone even with the single combo speaker. Phenomenal playing. Thanks
Hello Rob, thank you. Yes, those tube sockets had to go. I didn't think it would sound that good. Wipes the floor with the Blues Junior. Thanks Rob and take care.
Just shows the difference speakers can make.. I wonder which single speaker fitted in the Pro Jnr cab would improve it ? Great video again Martyn and brilliant playing demo.
Martyn, how you coming with that Masco? I posted some technical info about that model in the comment section of your (presumably) Part 1 video; and also wanted to let you know that I posted a video in my channel about using "scratch brushes" for soldering preparation and removal of tarnish/oxidation.
Did you just say 'wont be long before I'm playing 10's instead of 11's'? I found 10's hard work a decade ago. I'm on 9's and my little finger still hurts.
Martyn has a serious case of "guitar face" going on here! My face, however, is crestfallen😭 because I can't even begin to play Anywhere near this level.....
I'm glad the customer removed the tubes before shipping it, but it would have been nice if he hadn't chewed up the screwheads so badly. Jeez, folks, use a good quality screwdriver with the correct size tip and save the poor repair tech some trouble!
Hello. It might not have been the customer. There was been signs that a few people had been in this amp. Like the Ferrite dooferer an the speaker wire. But as you say, not great. Take care.
Brad's Guitar Garage says he has measured 430-440 volts on EL84's in Mesa amplifiers, which is just one of many reasons why he refuses to work on anything from that company.
With playing as good as Martyn's, the neighbors should consider themselves lucky! Most techs are nowhere near as musically skilled; and then there's myself, even worse.....
Thanks mate. You might not be the guitarist I am but you whoop me in the tech department. I have learnt so much from over the last two years. Thank you.
@@goodun2974 It of course does not prevent parasitic oscillations but could prevent speaker wire acting like a parasitic oscillation transmitter antenna. 😁
@@jutukka Seems to me that the output transformer should provide sufficient bandwidth limiting for that! Interestingly, I did work on an amp some years ago that despite a full recap exhibited trailing ghost notes until I grounded the speaker frame to the amp chassis.
@@goodun2974 If it is a ferrite inductor, maybe it is supposed to bring some magical mojo to the sound then, because those things must cost a couple of cents. 🤔
Hey Martyn, Great re-work of a questionably designed amp. I guess you decided to leave the heater voltage alone..? Your play at the end is always the best part.
Hello David, thank you. Yes, I was in two minds what to do about the heater voltage. It's hard to say how much it will shorten the life of the tubes. They will certainly last a lot longer now it is biased correctly. Thanks David and take care.
Great playing btw. If youre gigging, you should consider posting a clip
Hello, good to hear from you again. Thank you. I will dig something up with the gigging. Take care
Cracking repair, those loose valve sockets would have started crackling eventually and possibly even dropped a tube. The power tubes retainer springs seemed to have no top bracket? Great tone even with the single combo speaker. Phenomenal playing. Thanks
Hello Rob, thank you. Yes, those tube sockets had to go. I didn't think it would sound that good. Wipes the floor with the Blues Junior. Thanks Rob and take care.
Just shows the difference speakers can make.. I wonder which single speaker fitted in the Pro Jnr cab would improve it ? Great video again Martyn and brilliant playing demo.
Hello Pete. It does I really must get a few speakers so we can do more testing. Take care Pete.
Martyn, how you coming with that Masco? I posted some technical info about that model in the comment section of your (presumably) Part 1 video; and also wanted to let you know that I posted a video in my channel about using "scratch brushes" for soldering preparation and removal of tarnish/oxidation.
I have a few ideas . Keiran has sent me some 6L6 coke bottles to go in it. I will deffo have a look at that video.
Did you just say 'wont be long before I'm playing 10's instead of 11's'? I found 10's hard work a decade ago. I'm on 9's and my little finger still hurts.
Hello David. I reckon I will be on 9s soon if the arthritis gets any worse. Thanks for watching David and take care.
Thanks for sharing!
Hello Paul, thank you. Take care.
Martyn has a serious case of "guitar face" going on here! My face, however, is crestfallen😭 because I can't even begin to play Anywhere near this level.....
Ha Ha, you should my face when I am playing live.
I'm glad the customer removed the tubes before shipping it, but it would have been nice if he hadn't chewed up the screwheads so badly. Jeez, folks, use a good quality screwdriver with the correct size tip and save the poor repair tech some trouble!
Hello. It might not have been the customer. There was been signs that a few people had been in this amp. Like the Ferrite dooferer an the speaker wire. But as you say, not great. Take care.
Brad's Guitar Garage says he has measured 430-440 volts on EL84's in Mesa amplifiers, which is just one of many reasons why he refuses to work on anything from that company.
Hello. I don't blame him. @BradsGuitarGarage is a brilliant channel. I must find more time to watch his videos
Good job yer neighbours are deaf 😂😂😂😂😂
With playing as good as Martyn's, the neighbors should consider themselves lucky! Most techs are nowhere near as musically skilled; and then there's myself, even worse.....
Hello John. There not deaf, they are out. I had a look out the window to make sure there cars were gone. Take care John
Thanks mate. You might not be the guitarist I am but you whoop me in the tech department. I have learnt so much from over the last two years. Thank you.
I'd love to see a 5e3 wired in that amp !
Can caps could save you some space
Yes, I almost ripped the board out. Mind you , it wouldn't take much to mod it in to a 5E3
They could. I think if I get another one, I am gonna go for the 5E3. I reckon the turret board might just fit in.
@@vintageguitaramp_guitarteacher I just measured a 5e3 board that I have. 9x2.75 inches. It's a Chinese turret board off of ebay
@vintageguitaramp_guitarteacher the 5e3 turret board, I got off of eBay measures 9x2.75 inches. It probably would fit nicely
Do my eyes deceive me or is there a Ferrite inductor surrounding the speaker wires going to the output jack? What the F is that about?
If so, that hopefully filters off possible huge high frq parasitic oscillation signal from speaker cable. 😊
@@jutukka , if a tube amp needs ferrites to prevent parasitoc oscillation, it probably has poor design and layout.
@@goodun2974 It of course does not prevent parasitic oscillations but could prevent speaker wire acting like a parasitic oscillation transmitter antenna. 😁
@@jutukka Seems to me that the output transformer should provide sufficient bandwidth limiting for that! Interestingly, I did work on an amp some years ago that despite a full recap exhibited trailing ghost notes until I grounded the speaker frame to the amp chassis.
@@goodun2974 If it is a ferrite inductor, maybe it is supposed to bring some magical mojo to the sound then, because those things must cost a couple of cents. 🤔