So I've finished the build of my JCM 800 replica and I want to show it to the world. It has switchable modifications #34/#36 and it was my first build and big challenge in soldering technique. Honestly I can say, that I was learning on this amplifier. I started this build on September 2012 and yesterday it was fully finished. Also amp has Lar/Mar PPIMV (you know, you can't get sweet tone of Marshall without blowing out your ears
). Few words about components:- Quadre of JJ-Electronics EL34
- 3xECC83 Electro-Harmonix + TungSol ECC83 on 4th gain stage (but I've switched E-H on 3rd gain stage to NOS RFT, because it was humming 100Hz, I don't know why)
- Electrolytic capacitors by JJ-Electronics
- Capacitors on board - 150s Mallory's, Silver Mica's, two Orange Drops and some no-names
- Vishay Dale Metal Film 1W resistors
- Pots mostly Marshall PCBs, but it's also one Alpha on treble and one on PPIMV
- Marshall rockers and Marshall Impedance Selector.
Unfortunately I don't have fresh pics of chassis-inside, but in short time I will try to post them.
About tone sample's (in fact about comparisions to Slash's #34) you can find it on: http://soundclick.com/seban" onclick="window.open(this.href);return false; . In this time two recordings are fresh: #34 corrected capacitor and this with RFT NOS Valves in title (but mic is on wrong position). In time I will upload #36 sample - it's circuit based on AFD mode in AFD100 (I've writed about it in Marshall S.I.R SuperLead thread).
About head-cab: It's a little to high and rockers are too far from the left corner, but generally I consider this project as succeded
Few pics:
http://s10.photobucket.com/user/seban_1 ... 0%20Recent" onclick="window.open(this.href);return false;
Best,
Sebastian
