Search found 4571 matches

by Stevem
Tue Mar 12, 2024 9:45 pm
Forum: Technical Discussion
Topic: Fender Deluxe V. M. 2008
Replies: 3
Views: 147

Re: Fender Deluxe V. M. 2008

Thanks for the correction!

I was looking at the wrong schematic.
by Stevem
Tue Mar 12, 2024 3:31 pm
Forum: Technical Discussion
Topic: Princeton reverb 12at7 voltage is inconvenient.
Replies: 10
Views: 300

Re: Princeton reverb 12at7 voltage is inconvenient.

This is what I had in mind that I posted about.
by Stevem
Tue Mar 12, 2024 10:15 am
Forum: Technical Discussion
Topic: Fender Deluxe V. M. 2008
Replies: 3
Views: 147

Re: Fender Deluxe V. M. 2008

It's a 1K 5 watt.
by Stevem
Mon Mar 11, 2024 10:15 am
Forum: Technical Discussion
Topic: Princeton reverb 12at7 voltage is inconvenient.
Replies: 10
Views: 300

Re: Princeton reverb 12at7 voltage is inconvenient.

For the price of a reverb driver transformer and the tube you drive it you can get a SS reverb section the only needs 5 volts .
by Stevem
Sun Mar 10, 2024 11:22 am
Forum: Technical Discussion
Topic: Just got this Bogen Challenger CH8 working, now what?
Replies: 6
Views: 284

Re: Just got this Bogen Challenger CH8 working, now what?

This comment might be short sighted, but how does one become a better guitar player when you leave your axe at a Cigar Lounge all week long?

I missed this the first time through this string.
by Stevem
Sun Mar 10, 2024 11:16 am
Forum: Technical Discussion
Topic: Help with circuit
Replies: 18
Views: 436

Re: Help with circuit

Well you first need to learn about what negative feedback is and what it does to the tone and response of a amp. To save someone from from having to type up a 25 minute reply to you take stroll over to the Aiken amp site, go into his white paper listing and there you will find 2 articles on negative...
by Stevem
Wed Mar 06, 2024 2:58 pm
Forum: Technical Discussion
Topic: Keep a lookout.
Replies: 4
Views: 231

Re: Keep a lookout.

The heat sink is bolted to the SS recto bridge.
This whole PS board however is on output tube side of the chassis, but I think the issue might be more age related.
by Stevem
Wed Mar 06, 2024 11:18 am
Forum: Technical Discussion
Topic: Keep a lookout.
Replies: 4
Views: 231

Keep a lookout.

I am working on two Egnator Renegades and both of them have this 10,000 uF filter swelling up and going bad.
by Stevem
Tue Mar 05, 2024 11:47 am
Forum: Technical Discussion
Topic: Output transformers
Replies: 10
Views: 307

Re: Output transformers

I am working on a real DS right now trying to take some gain out of it, but more importantly hiss. Anyway with 100% strong testing 84s in this amp and 120 vac coming in the amp in stock form is hard pressed to output 12 watts rms. That Hammond will live forever in that circuit if the core is close t...
by Stevem
Mon Mar 04, 2024 11:02 am
Forum: Technical Discussion
Topic: ECG160 Transistor for rangemaster
Replies: 3
Views: 137

Re: ECG160 Transistor for rangemaster

Your giving us no info to work with here!

Can you post the voltages your getting and a schematic of the rangemaster circuit please?
by Stevem
Sat Mar 02, 2024 11:30 pm
Forum: Technical Discussion
Topic: PT reverse engineering problem
Replies: 11
Views: 344

Re: PT reverse engineering problem

The solid core black wire must be the shield attached to the core.
Other then that you got me!
by Stevem
Sat Mar 02, 2024 1:48 pm
Forum: Fender Discussion
Topic: Deluxe Reverb power transformer change?
Replies: 16
Views: 1155

Re: Deluxe Reverb power transformer change?

The main difference between the two amps is the responce time of the two different rectifiers used once the output stage starts to really load the power supply hard. The 5U4 has a much higher internal impedance then the GZ and there for will respond a bit slower under high current draw conditions. N...
by Stevem
Sat Mar 02, 2024 1:22 pm
Forum: Technical Discussion
Topic: Build Ideas for OT with 4.1K Primaries - Cathode biased 6L6s?
Replies: 5
Views: 230

Re: Build Ideas for OT with 4.3K Primaries - Cathode biased 6L6s?

Sounds like a Wards Airline 8517 cut back to only 2 outputs might be a interesting way to go.

Dare to be different!

Someone once said that life begins at the end of your comfort zone 😊
by Stevem
Fri Mar 01, 2024 6:31 pm
Forum: Technical Discussion
Topic: You never know!
Replies: 4
Views: 213

Re: You never know!

I can see how this could happen with the Marshall that’s hand wired because the cathode resistor I would assume was soldered across the cap and then both soldered in as a assy, but when your installing a cap on a board that’s marked for correct installation then that’s a real screw up!
by Stevem
Fri Mar 01, 2024 12:18 pm
Forum: Technical Discussion
Topic: You never know!
Replies: 4
Views: 213

You never know!

Brand new Marshall 100 super lead with the pin 3 cathode cap wired in back wards.