|Instruments and Amps Everything that makes music, Especially including instrument amps.|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
||Thread Tools||Search this Thread|
|19th February 2011, 09:20 PM||#1|
Join Date: Jan 2011
Peavey Windsor Studio The output tube El 34 burned out
I tjeck the plate voltage et is 470V maby too heigh for SE Class A Pentode singel tube. Hmm.
Is ther enybobby who has tjekt the plate voltage. is et around 270V ????
I think the reason et burned, was because the bias was wrong:
power anode (Wa) Ua 465- Uc 28 * Ia 72mA= 31W = burne out. and max is 25W
should I only re adjust bias or should I also lower Ua befor adjust bias.
some suggestions ................
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Peavey Windsor 120 Watt head schematic?||guitar_joe||Instruments and Amps||17||14th September 2016 10:28 AM|
|telefunken EL 34 audio tube||first||Tubes / Valves||3||27th September 2007 07:36 PM|
|WTB:OT for el 34 35 watt tube amplifier||sma||Tubes / Valves||6||29th December 2005 04:19 PM|
|el-34 suggestion||mezon||Tubes / Valves||7||10th April 2003 10:28 PM|
|Electro Harmonix El 34 (Large tube)||Fritz||Swap Meet||0||22nd September 2002 04:00 AM|
|New To Site?||Need Help?|