GUTS. Its not too bad inside. A bit messy with some long runs but thats just what you get with a weird control layout like it has. So far the trace is going well, but there are parts I cant see on the underside of the board. I cant easily flip it to see so before I unsolder leads to get at it im gonna try inspection with a mirror. Otherwise is looks pretty okay...one cut wire at the power transformer primary and the pilot light is disconnected. Couple of fucked pots. Hopefully all the big stuff works.

I actually dont think its a missing cap can, I think its just a hole in the chassis where one could go. That cut wire is on the primary side of the PT, right after the power switch. No DC filtering goin on there! Also the DC power rail looks plenty well filtered and not like its missing anything.

W.L.Weller wrote:Dr. Balls, is that reverb tank mounting "solution" with the foam just better or just worse than the erzatz bag I made for the tank in my Hohner CA-300No clue! Ill let you know when I finally fire it up.

That thing looks so bad ass.

Tommy wrote:Dr Tony Balls wrote:tallchris wrote:Whoa, never seen a shielding cage around a transformer like that before!I dont know why its got that, TBH. I dont think its necessary, but it does help to hold up the amp when you flip it over!It's a laydown transformer that's pretty close to the Rock inputs. Maybe some interference possibility? My OR120 has the inputs covered by a shielded cage instead of the transformer (also has a laydown transformer close to them).The transformer has bell-end covers on it though. If it was an exposed winding, like the OT is, I could see that cage helping, but it's probably redundant. Maybe they originally designed it around a different unshielded PT.

All of those holes near the output tubes are for ventilation, not mounting. There's probably a few extra holes, like the ones near the front pots, but nothing crazy. It looks like it's possibly punched for mounting a chassis-mount choke. Could always fill those extra holes with a bias pot or some other switchable mod.

W.L.Weller wrote:So glad that this weird old amp is going to live & rock & jazz again.FYP

Glad it made it there safe and sound. Excited to see how it turns out and looking forward to all the running commentary.Just for posterity, here is a link to the original Fernandes catalog these first appeared in, and here are the original photos I took of it (and Tony has just posted a guts shot while I was posting this! hah!)Missing Can. Blown resistor.

Is it just me or does that seem like a ton of extra holes punched into the chassis?

Dr. Balls, is that reverb tank mounting solution with the foam just better or just worse than the erzatz bag I made for the tank in my Hohner CA-300 out of my kid's pant leg cutoff?Now I wish I had a picture of my hackery to illustrate..picture the bottom 18 of some size 7 Old Navy pants, stapled to the pegboard I used as a front panel. 100% mint deluxe, fine artisanal craftsmanship.So glad that this weird old amp is going to live & rock again.