Search found 609 matches

by tictac
Sun May 26, 2019 9:09 pm
Forum: Technical Discussion
Topic: Pedal Steel Amp - Troubleshooting
Replies: 10
Views: 771

Re: Pedal Steel Amp - Troubleshooting

your wet/dry mix stage is wired wrong.... look at a Twin Reverb schematic for the correct wiring

TT
by tictac
Thu Dec 06, 2018 1:53 am
Forum: Marshall Discussion
Topic: Dsl5c schematic
Replies: 5
Views: 2510

Re: Dsl5c schematic

I would like too, please and Thank You!

daveedburns@gmail.com
by tictac
Mon Nov 26, 2018 3:40 am
Forum: Dumble Discussion
Topic: High Plate Sky w/ Individual Bias pots
Replies: 18
Views: 1884

Re: High Plate Sky w/ Individual Bias pots

All my amps have bias adjustment for each tube... it's not a new thing. My last ODS 100W had a rotary switch and jacks to plug your volt meter into. The rotary switch allows you to toggle between power tubes. Overkill maybe but convenient!


TT
by tictac
Tue Oct 30, 2018 10:07 pm
Forum: Dumble Discussion
Topic: Steel String Singer+Overdrive Reverb+Post PI Cathode Follower Hybrid thread
Replies: 6
Views: 1455

Re: Steel String Singer+Overdrive Reverb+Post PI Cathode Follower Hybrid thread

The JM Sig schematic posted on TAG shows the reverb being tapped before the 2nd stage. We are talking about the TwoRock amp, correct?

TT
by tictac
Mon Oct 29, 2018 4:22 am
Forum: Dumble Discussion
Topic: Steel String Singer+Overdrive Reverb+Post PI Cathode Follower Hybrid thread
Replies: 6
Views: 1455

Re: Steel String Singer+Overdrive Reverb+Post PI Cathode Follower Hybrid thread

Your reverb send could end up with too much gain since your feeding it after V1B (series) instead of before it (parallel) as Dumble does....

TT
by tictac
Mon Oct 08, 2018 2:43 am
Forum: Technical Discussion
Topic: Montgomery Ward 35JDR8421
Replies: 18
Views: 3348

Re: Montgomery Ward 35JDR8421

FYI it looks like there's asbestos in the amp shown in these pics. If this material is in your amp you should seriously consider removing from the amp and properly disposing it.

TT
by tictac
Thu Oct 04, 2018 10:39 pm
Forum: PCB Design
Topic: PCB for 12V Relay
Replies: 4
Views: 6656

Re: PCB for 12V Relay

This is what I'm looking for....
by tictac
Thu Oct 04, 2018 10:37 pm
Forum: Dumble Discussion
Topic: Dumble Clone Parts: Who's Selling?
Replies: 7
Views: 1130

Re: Dumble Clone Parts: Who's Selling?

This is what I'm looking for.....
by tictac
Thu Oct 04, 2018 10:29 pm
Forum: Dumble Discussion
Topic: Dumble Clone Parts: Who's Selling?
Replies: 7
Views: 1130

Re: Dumble Clone Parts: Who's Selling?

My PT has two 6.3VDC taps so I'll get my relay voltage from those and use 12V for the filaments too....

I'm looking for the relay boards without the relays

TT
by tictac
Thu Oct 04, 2018 1:48 pm
Forum: Dumble Discussion
Topic: Dumble Clone Parts: Who's Selling?
Replies: 7
Views: 1130

Dumble Clone Parts: Who's Selling?

Sorry for my ignorance but can anyone direct me to who if anyone is selling parts for Dumble clones, Dumble-Lite, etc?
by tictac
Thu Oct 04, 2018 1:40 pm
Forum: PCB Design
Topic: PCB for 12V Relay
Replies: 4
Views: 6656

Re: PCB for 12V Relay

Thank, looks like those will work in a pinch....
by tictac
Tue Oct 02, 2018 6:24 pm
Forum: PCB Design
Topic: PCB for 12V Relay
Replies: 4
Views: 6656

PCB for 12V Relay

Hi,

does anyone know where I could buy a few pcb's for a single relay? I believe the Dumble guys have boards for dual relays but I need a pcb for just a single relay.

Any suggestions?

Thanks!

TT
by tictac
Sat Sep 15, 2018 10:24 pm
Forum: Technical Discussion
Topic: Popping when amp put on Standby....sometimes
Replies: 7
Views: 654

Re: Popping when amp put on Standby....sometimes

I read about rewiring the standby switch to switch the screen B+ supply on and off which puts less stress on the switch too. Tried it and it works like a charm! No popping noises and amp is silent when in standby.... Lots of stanby switch replacements could have been avoided if Fender had does it th...
by tictac
Tue Aug 07, 2018 4:18 pm
Forum: Dumble Discussion
Topic: Relays: Solder or Socket? What's best practice?
Replies: 4
Views: 696

Relays: Solder or Socket? What's best practice?

Figured Dumble builders would be the best for answering this question. I have the first set of pcb's I've ever ordered coming this week. It's a three channel affair with three relays. I've used sockets for mounting relays on past builds but the pins seem so skinny and fragile that I'm worried about ...
by tictac
Tue Jul 17, 2018 11:24 pm
Forum: Marshall Discussion
Topic: JVM-1 Marshall Schematic (50th Anniversary)
Replies: 7
Views: 3686

Re: JVM-1 Marshall Schematic (50th Anniversary)

Hi,

I have a question about D4, D5, and C25 in the bias supply / DC supply (that feeds the TL072)

Why are D4, D5, and C25 in this circuit? D3 should be able to supply all the rectification needed...

Please explain if you can....

Thanks,

DB