Gave her a tube upgrade today...pair of NOS Mullard xf2 OO getter EL34's from 1965/1967.

Torshalla wrote: ↑

30 May 2020, 10:37

Did you order the pcb custom made? Or do they sell these as standard items?

I ordered them custom made beefing up the specs...

- .125 inch thick FR4
- 2oz copper
- Plated through holes
- Black solder mask with white silk screen

Beautiful workmanship. You obviously take great pride in your work :Thumbs Thanks! Now I'm draping the board during soldering like they do in surgery, pointing all the resistors in the same direction and polishing the solder joints with alcohol and a cotton swap...yeah it's getting way out of hand!...

SteveD in related news I continue to be so impressed by the Astoria Custom and its design. Yesterday I was describing it to a guy, it remains the bar by which other amps are measured.

I ended up going with Takman Rey and TDK metal films. Synergy Royal Mustards and WIMA film/foil caps. F&T's for the filer caps. Likely my final build with PEC stainless pots they have become ridiculously expensive.

That's a wrap on this rebuild she roared to life today! The vintage Mullard's I ordered for her arrive tomorrow.

I decided to refurbish the amp for another 38 years of life. http://www.coolidgeamps.com/pics/82r19.jpg http://www.coolidgeamps.com/pics/82r20.jpg http://www.coolidgeamps.com/pics/82r21.jpg http://www.coolidgeamps.com/pics/can01.jpg http://www.coolidgeamps.com/pics/can02.jpg http://www.coolidgeamps....

Lot of people believe the best JCM800s were built in 81-83, this one looks to have never been gigged. I have played many of these amps over the years, and from my experience there are simple ones that sound great and ones that don't. It´s a kind of taste with the JCM 800. Like Surf says there are g...

I'm guessing this was built for the Canadian market? I had a 4104 (combo version of this amp) and the inside is very different. Mine didn't have that separate board with all the fuses. Canadian amps also had metal power/standby toggles, if I recall. Correct it's a Canadian version that's different ...

This week I scored this minty 2204 for $1,300. Came with what looks like the original Mullard UK Blackburn EL34's. http://www.coolidgeamps.com/pics/2204jcm01.jpg http://www.coolidgeamps.com/pics/2204jcm02.jpg http://www.coolidgeamps.com/pics/2204jcm03.jpg http://www.coolidgeamps.com/pics/2204jcm04.j...

Thanks Steve. I was trying to source resistors for a 1970 SL. Got sucked into the carbon vs metal film tone thing momentarily this weekend. I'm back to metal film.

Quick question, does the Astoria use carbon or metal film resistors?

All done!

SteveD wrote:I'm not finished just yet. I have a design that I'm particularly proud of, in prototype form at the moment.

I instinctively reached for my wallet

I have become irritated with the filament wiring this morning...making a run to the hardware store.