Search found 4644 matches
- Tue Dec 19, 2023 12:14 am
- Forum: Trainwreck Discussion
- Topic: Edcor Transformers for Trainwreck Express
- Replies: 6
- Views: 4893
Re: Edcor Transformers for Trainwreck Express
The primary impedance for an Express OT is 6k6, not 7k5.
- Sat Dec 16, 2023 12:45 pm
- Forum: Marshall Discussion
- Topic: 20W Silver Jubilee Build
- Replies: 6
- Views: 3718
Re: 20W Silver Jubilee Build
Looks great! That'll be a fun amp to play.
- Fri Dec 15, 2023 1:06 pm
- Forum: Garage Talk
- Topic: New admin. New members!
- Replies: 16
- Views: 18194
- Wed Dec 13, 2023 12:30 pm
- Forum: Technical Discussion
- Topic: Primary impedance for OTs - output and tone
- Replies: 16
- Views: 5380
Re: Primary impedance for OTs - output and tone
FWIW, I ended up using the extra node for the screens but used a 10k dropper instead of 22k. That put the screen node at about 290vdc with 350vdc plates at idle. About 10.2vdc on the 120ohm cathode resistor. I’m now building a 15W Liverpool in a sister chassis using a custom Fender Deluxe OT that i...
- Sat Dec 09, 2023 12:25 pm
- Forum: Technical Discussion
- Topic: Primary impedance for OTs - output and tone
- Replies: 16
- Views: 5380
Re: Primary impedance for OTs - output and tone
I recently built a 15W 2xEL84 Lightning clone using the alleged Matchless transformers built by Heyboer and sold on amppartsdirect. The 15W 2xEL84 OT has a primary impedance of 3800 ohms. Less than half of what most 2xEL84 amps are and about the same as their 30W amps (that OT is 3700 ohms). The am...
- Tue Nov 28, 2023 12:13 pm
- Forum: Technical Discussion
- Topic: AC30 repro chassis?
- Replies: 3
- Views: 1972
- Sun Nov 26, 2023 8:43 pm
- Forum: Trainwreck Discussion
- Topic: Changed the Input Grid Stopper to 68K
- Replies: 6
- Views: 3134
Re: Changed the Input Grid Stopper to 68K
F70 for the win. Nice playing!
- Sat Nov 25, 2023 12:57 pm
- Forum: Trainwreck Discussion
- Topic: Express / SLO 50W hybrid
- Replies: 47
- Views: 23735
Re: Express / SLO 50W hybrid
Very nice layout, Bepone.
- Mon Nov 20, 2023 1:14 pm
- Forum: For Sale/Trade
- Topic: New PCBs! Dumblelator, Princeton Reverb, SLO100
- Replies: 15
- Views: 4896
Re: New PCBs! Dumblelator, Princeton Reverb, SLO100
Bump. Please monitor your thread for questions and activity. Thank you.
- Mon Nov 20, 2023 1:08 pm
- Forum: For Sale/Trade
- Topic: WTB or WTT 50s era Astron caps
- Replies: 12
- Views: 3012
Re: WTB or WTT 50s era Astron caps
Bump up. Still looking?
- Mon Nov 20, 2023 1:07 pm
- Forum: For Sale/Trade
- Topic: Amplified Nation JM/Wonderland Chassis and Board Sets - IN STOCK 12/22/22
- Replies: 23
- Views: 8158
- Mon Nov 20, 2023 1:06 pm
- Forum: For Sale/Trade
- Topic: NOS Capacitors
- Replies: 6
- Views: 3259
Re: NOS Capacitors
Bump! Still available?
- Mon Nov 20, 2023 1:05 pm
- Forum: For Sale/Trade
- Topic: WTB: dead Astron electrolytics
- Replies: 15
- Views: 2879
Re: WTB: dead Astron electrolytics
Bump. Still looking or did you find what you need?
- Mon Nov 20, 2023 1:05 pm
- Forum: For Sale/Trade
- Topic: VOX AC30 Chassis on sale
- Replies: 12
- Views: 6053
- Mon Nov 20, 2023 1:03 pm
- Forum: For Sale/Trade
- Topic: Trainwreck, Matchless and Marshall 18W PCBs
- Replies: 3
- Views: 2540
Re: Trainwreck, Matchless and Marshall 18W PCBs
Bump. Still selling?