Perhaps you have seen what Psionic (Lyle) goes through with this issue. An alcohol lavage and meticulous removal of the residue that builds up on the wax boards can be quite effective. Then there is the under board that gets polluted. I have pulled that board out on my silver face champ and done the whole lavage with alcohol and it does work to eliminate the DC that gets on those old boards. It's a process but then you have a great fender amp again. Long live old amps. I haven’t seen Lyle’s video. He does have good content so I will check it out. As I mentioned to Jelle, the circuit card in ..read more

Mark, with 20-30VDC on the board, I can tell you that there is no saving this board. Its something i have tried several times....take board out, take all parts off, remove paraffin with heat gun/paper towels, acetone/brake cleaner clean off the residual mess, rebuild.... Then the same thing happened when all was done. its time for a new board. Good to hear from you again. It’s been too long. Thanks for answering my post. I have been down the path before as you know, I have cleaned boards with MEK and alcohol to no avail. I have had boards in an oven for 8 hours in order to remove moisture. O ..read more

Mark, with 20-30VDC on the board, I can tell you that there is no saving this board. Its something i have tried several times....take board out, take all parts off, remove paraffin with heat gun/paper towels, acetone/brake cleaner clean off the residual mess, rebuild.... Then the same thing happened when all was done. its time for a new board. Statistics: Posted by jelle — Sun May 05, 2024 2:11 am ..read more

You have a nice collection of carbon comp resistors there and though it looks like the boards are the real problem here was an interesting commentary on reconditioning the carbon resistors from Hi Fi Collective: Being made of organic material, they do have the tendency to absorb water from the atmosphere. This absorption can increase the actual resistance of the component, hence the slightly higher-than-normal tolerance published on this page. To fix this, remove the water from the component and seal it. The best method is to place the resistor/s on a baking tray, set your oven to 80 degrees ..read more

One caveat with the scrubbing, heating, alcohol method; I have seen a few where the backer board gets charred. Sometimes you can lift the top board slightly and pull the backer board out without disassembling everything, then scrape off the carbon, add some fish paper, etc., or just replace the board. Sometimes the last guy pooled too much solder under the board trying to figure out the conductive board problem and made everything worse... Statistics: Posted by maxkracht — Sat May 04, 2024 3:30 pm ..read more

Perhaps you have seen what Psionic (Lyle) goes through with this issue. An alcohol lavage and meticulous removal of the residue that builds up on the wax boards can be quite effective. Then there is the under board that gets polluted. I have pulled that board out on my silver face champ and done the whole lavage with alcohol and it does work to eliminate the DC that gets on those old boards. It's a process but then you have a great fender amp again. Long live old amps. Statistics: Posted by angelodp — Sat May 04, 2024 1:53 pm ..read more

I admit I am curious... Are you even going to try to resurrect this beast? How do you even begin to evaluate whether an amp like this is worth saving? And to what lengths you might go to preserve the legacy value of the original? Yes, I want to save the amp, I don’t know what it will take to get it working properly. There is the thought of turning it into an AB763 amp. The push/pull master volume with switch is a bit of a pain. Great to hear! If you aren't going for a faithful restoration then I bet there's much you can do to transform it into something special... something Ultra Phonix ..read more

I never seen a Fender with these lugs before either but it is what it is. The lugs are original as the resistor attached to the lugs is the very same type as is used on the other side of the P.I. grid. There are no signs of the resistor being removed and resoldered. The solder joints are untouched and the wax coating is still on that part of the board. Have a good look at the picture. Why do you think it’s not original? Statistics: Posted by Mark — Fri May 03, 2024 4:22 pm ..read more

I admit I am curious... Are you even going to try to resurrect this beast? How do you even begin to evaluate whether an amp like this is worth saving? And to what lengths you might go to preserve the legacy value of the original? Statistics: Posted by Stephen1966 — Fri May 03, 2024 11:58 am ..read more

Have fun with that. I just happened to fire up my 64 Tremolux for first time since the pandemic, good lord that Fender sparkle and chime and such a lovely trem. Some magic in the enclosed 2x10 cab as well. Statistics: Posted by angelodp — Fri May 03, 2024 7:56 pm ..read more