Search found 13628 matches

by M Fowler
Sat Oct 30, 2021 3:30 pm
Forum: Trainwreck Discussion
Topic: Tonic Trainwreck Express Clone hum issue
Replies: 12
Views: 2224

Re: Tonic Trainwreck Express Clone hum issue

Happy to help. Minot AF not the end of the world but you can see it from there! Chuck Yeager quote.

Take care enjoy being a civilian again.

Mark
by M Fowler
Fri Sep 24, 2021 2:19 pm
Forum: Trainwreck Discussion
Topic: Tonic Trainwreck Express Clone hum issue
Replies: 12
Views: 2224

Re: Tonic Trainwreck Express Clone hum issue

If your still in North Dakota stop and see me, I will fix your amp.

Mark
by M Fowler
Wed Sep 22, 2021 2:40 am
Forum: Marshall Discussion
Topic: HRP_50
Replies: 25
Views: 4757

Re: HRP_50

So I drew a schematic. Mostly the DBM/Mark Fowler HotRodPlexi, some minor changes. Bass pot using all 3 legs, Hammond Iron, Presence wired to keep DC off the pot, PS dropping R's changed because I tried to use Duncan's PSU designer... Anything that should be changed before I work a layout and commi...
by M Fowler
Tue Sep 14, 2021 5:37 pm
Forum: Technical Discussion
Topic: Locked post
Replies: 20
Views: 1663

Re: Locked post

Why do I always miss the fun!

Ampgarage is the best site ever and the active members are the best with such knowledge, thanks everyone!

Mark
by M Fowler
Sat Sep 11, 2021 4:39 pm
Forum: Marshall Discussion
Topic: 50w Hot Rod Plexi AFD #39
Replies: 164
Views: 33540

Re: 50w Hot Rod Plexi AFD #39

A full schematic would be great.
by M Fowler
Sat Sep 11, 2021 4:35 pm
Forum: Garage Talk
Topic: Just stopped by to see what's new.
Replies: 15
Views: 1992

Re: Just stopped by to see what's new.

Hello Gary great to hear from you.

Mark
by M Fowler
Wed Sep 08, 2021 2:58 pm
Forum: Technical Discussion
Topic: Tweed 5e3 PLUS! with reverb??
Replies: 20
Views: 1605

Re: Tweed 5e3 PLUS! with reverb??

From Hoffman Amps .sch files 5E3 with Reverb schematic.

Mark
5E3-R.bmp
5E3-R.bmp
by M Fowler
Tue Sep 07, 2021 2:14 pm
Forum: Marshall Discussion
Topic: 50w Hot Rod Plexi AFD #39
Replies: 164
Views: 33540

Re: 50w Hot Rod Plexi AFD #39

Joe,

I did not but would be a good idea or DC circuit at least on v1.

We run 5751 or 12au7 or 12ay7 in v1. Gain with 12ax7 is high.

Mark
by M Fowler
Sun Sep 05, 2021 10:47 pm
Forum: Marshall Discussion
Topic: 50w Hot Rod Plexi AFD #39
Replies: 164
Views: 33540

Re: 50w Hot Rod Plexi AFD #39

@Mark Fowler Hey Mark I was going to start a HRP 50 build and have a couple questions if you wouldn't mind? In comparing the DBM sketch to your gutshots it looks like you dropped the 1000pF (C12) on the Mid pot wiper to gnd, the bass pot looks like it is connected as a variable resistor (2 legs) ra...
by M Fowler
Sun Sep 05, 2021 9:34 pm
Forum: Technical Discussion
Topic: New 3-channel amp build
Replies: 12
Views: 1794

Re: New 3-channel amp build

Very nice, complicated to me :D where's your Champ amp?
by M Fowler
Mon Aug 30, 2021 5:09 pm
Forum: Marshall Discussion
Topic: Merlin's Ultra High Gain preamp
Replies: 53
Views: 20831

Re: Merlin's Ultra High Gain preamp

Turned out great and is so damn loud. It's been sold twice and just came in for new tubes.
received_1071551723584336.jpeg
by M Fowler
Sun Aug 29, 2021 4:04 pm
Forum: Dumble Discussion
Topic: Classic or Skyliner? Rebuilding a VHT D-50
Replies: 48
Views: 8569

Re: Classic or Skyliner?

Tony,

I answered your message sent to me.

Mark
by M Fowler
Mon Aug 09, 2021 2:50 am
Forum: Marshall Discussion
Topic: 50w Hot Rod Plexi AFD #39
Replies: 164
Views: 33540

Re: 50w Hot Rod Plexi AFD #39

I just saw this post and will respond soon.
by M Fowler
Fri Jul 30, 2021 12:14 am
Forum: Trainwreck Discussion
Topic: New Rocket inspired build
Replies: 9
Views: 2491

Re: New Rocket inspired build

Love your work, very nice!

Mark