Search found 131 matches

by frankdrebin
Sat Jan 20, 2024 7:29 am
Forum: Garage Talk
Topic: F*cking clients
Replies: 23
Views: 1156

Re: F*cking clients

next time just tell him "come back in 4 months then". If he doesn't come back in time with all the money,sell it,you can't afford to lose money to serve parasites. i always make a test in front of the client, if approved by him,then he can't complain later,amps get bad even after one week,especially...
by frankdrebin
Sat Nov 19, 2022 8:56 am
Forum: Technical Discussion
Topic: Kustom Defender V50
Replies: 8
Views: 806

Re: Kustom Defender V50

try this
Kustom_defender112.pdf
by frankdrebin
Fri Sep 24, 2021 5:51 pm
Forum: Garage Talk
Topic: Guitar Tuner
Replies: 5
Views: 999

Re: Guitar Tuner

i have the Unitune,equally good
by frankdrebin
Mon Aug 23, 2021 4:05 pm
Forum: Technical Discussion
Topic: Best standby switch wiring in 2204
Replies: 20
Views: 1701

Re: Best standby switch wiring in 2204

you can wire the standby to the screen grid line only,that is much less stressful on the contacts,Peavey used to do that
by frankdrebin
Sun Jul 11, 2021 11:28 am
Forum: Technical Discussion
Topic: 5E3 clean headroom
Replies: 25
Views: 1940

Re: 5E3 clean headroom

you can play humbuckers like old style pafs,which have less output and not so mid heavy like modern ones,but you still need to adjust guitar volume and play with the amp 2 volumes,once you turn up the unplugged channel it can clean up a bit. Anyway,it's an old debate,many think that it's the volume ...
by frankdrebin
Sat Jul 10, 2021 6:02 am
Forum: Technical Discussion
Topic: Friedman Naked Amp schematic?
Replies: 6
Views: 1552

Re: Friedman Naked Amp schematic?

its very much like the Naylor super drive,power amp more like a classic Marshall
by frankdrebin
Sun Jun 27, 2021 4:16 pm
Forum: Technical Discussion
Topic: Black star ht soloist 60
Replies: 5
Views: 514

Re: Black star ht soloist 60

mosfets are the Pi,the following tube stages are boosters for the power tubes
by frankdrebin
Thu Jun 24, 2021 6:04 pm
Forum: Technical Discussion
Topic: Black star ht soloist 60
Replies: 5
Views: 514

Re: Black star ht soloist 60

here it is
by frankdrebin
Tue Dec 08, 2020 9:58 am
Forum: Technical Discussion
Topic: Sporadic relay failure anyone?
Replies: 3
Views: 274

Re: Sporadic relay failure anyone?

if the controller has not enough current to drive the relay directly it is really possible to have malfunctioning.
In my experience it is always better to activate the relay via a transistor or fet,which is turned on by the controller.
by frankdrebin
Tue Nov 03, 2020 8:27 pm
Forum: Technical Discussion
Topic: Benson Monarch
Replies: 480
Views: 69082

Re: Benson Monarch

I haven't measured voltages yet, but this is for anyone who needs a schematic for repairs or servicing. And the Dizzy Bird reverb unit. Thanks, Aaron looking at the Monarch schematic,if you bring down to zero the reverb pot you get zero volume,i guess there should be a resistor in line. The Vinny m...
by frankdrebin
Sun May 17, 2020 6:28 am
Forum: Technical Discussion
Topic: The 2204 is down.
Replies: 17
Views: 822

Re: The 2204 is down.

most probably first resistor after the choke open,just check voltage on screen and PI supply,maybe a broken soldering
by frankdrebin
Fri May 15, 2020 5:37 am
Forum: Fender Discussion
Topic: 5e3 stopped working - blows fuses
Replies: 17
Views: 2426

Re: 5e3 stopped working - blows fuses

Use a lamp bulb in series with primary,secondaries disconnected,you can't get any conclusions with an ohm meter.
by frankdrebin
Mon May 04, 2020 6:30 am
Forum: Technical Discussion
Topic: Kevin O'Connor master volume mod?
Replies: 4
Views: 662

Re: Kevin O'Connor master volume mod?

I won't go on theory, I say just try it, I think you'll get the reality.
by frankdrebin
Thu Apr 09, 2020 8:58 am
Forum: Technical Discussion
Topic: 10K(z) for a pair of 6L6?
Replies: 3
Views: 398

Re: 10K(z) for a pair of 6L6?

with those values,if you bias at 90/100% you will get full class A.
by frankdrebin
Sun Mar 22, 2020 8:16 am
Forum: Marshall Discussion
Topic: Philips MKT capacitors?
Replies: 9
Views: 2624

Re: Philips MKT capacitors?

Hi! Marshall-fever hit me big time a while ago and I see no other cure for it than build me one. I have plenty of these 22nf Philips MKT caps and I was thinking about using them🤔 It’s gonna be late JMP 2204/early JCM800 —type circuit and what I’ve read that those yellow box caps were MKT-type and m...