Search found 1125 matches

by Richie
Wed Mar 04, 2015 4:33 pm
Forum: Fender Discussion
Topic: motor boating on a twin
Replies: 62
Views: 8513

Re: motor boating on a twin

Have you tried replacing the mica treble caps? Many of the new ones can be leaky.
by Richie
Wed Mar 04, 2015 1:23 am
Forum: Technical Discussion
Topic: how to trouble shoot a tremlo problem- Help
Replies: 10
Views: 1855

Re: how to trouble shoot a tremlo problem- Help

Well that's not your typical marshall 18 watt trem circuit. Compare this layout and values of your circuit to this. For one, using all .022 trem caps may make it hard for the trem to start up,if at all. Also the trem in 18 waters is very quirky to lead dress,and depends on what 12AX7 you use in the ...
by Richie
Wed Mar 04, 2015 12:00 am
Forum: Trainwreck Discussion
Topic: My Rocket voltages
Replies: 4
Views: 1489

Re: My Rocket voltages

what value cathode resistor are you using on the EL84s

Whats up with the voltage on the grids?
by Richie
Sat Feb 28, 2015 4:10 pm
Forum: Fender Discussion
Topic: BF Deluxe Reverb - how to get overdrive smoother?
Replies: 21
Views: 7822

Re: BF Deluxe Reverb - how to get overdrive smoother?

Is this a reissue or a real BF?
by Richie
Fri Feb 27, 2015 2:21 am
Forum: Technical Discussion
Topic: Edcor service
Replies: 24
Views: 4385

Re: Edcor service

I went to there site back before christmas, picked out a transformer that met the specs for an amp I was building. Ordered it. Then a few weeks went by, and I called them. I asked when it might be shipped, and they told me end of January, they were all off, then when they come back they would be bus...
by Richie
Thu Feb 12, 2015 3:46 pm
Forum: Fender Discussion
Topic: 5f2a-ish build
Replies: 22
Views: 3940

Re: 5f2a-ish build

Have you checked the board to see if it is conductive? maybe check from the MV board connection over to the preamp. Check around those eyelets to see if the board is conductive. If you do find a bad spot, you could lift the connection from the board spot, and float that connection off the board.
by Richie
Mon Feb 09, 2015 6:56 pm
Forum: Fender Discussion
Topic: 5f2a-ish build
Replies: 22
Views: 3940

Re: 5f2a-ish build

try a different preamp tube.. then maybe look at changing any of the carbon comp resistors. Even if they are new, they can sometimes cause the static noises. I'd start with the 100k
by Richie
Sun Feb 08, 2015 11:34 pm
Forum: Technical Discussion
Topic: Marshall 18 watt. One tube red plating
Replies: 29
Views: 6281

Re: Marshall 18 watt. One tube red plating

Glad that was an easy fix. Anyone can make a mistake, rookie or experienced. :D
by Richie
Sat Feb 07, 2015 2:47 am
Forum: Technical Discussion
Topic: Marshall 18 watt. One tube red plating
Replies: 29
Views: 6281

Re: Marshall 18 watt. One tube red plating

This might go along with some things that were mentioned. A while back I had an amp here that needed some bugs worked out. And thought it was a good amp to video, and show how lead dress can effect an amp, in how it works,or keeps it from working,or causes noise problems. Or how shielded cable may n...
by Richie
Fri Feb 06, 2015 6:51 pm
Forum: Technical Discussion
Topic: Marshall 18 watt. One tube red plating
Replies: 29
Views: 6281

Re: Marshall 18 watt. One tube red plating

One thing I see, you have the red and blue as the wires going to the tube plates, and the CT being the brown wire. Well, THAT would cause a wee bit of trouble. Gripping my seat waiting to hear if this is the case! That's why I like pics, we could guess all day, and chase your tail trying to fix or ...
by Richie
Fri Feb 06, 2015 6:24 pm
Forum: Technical Discussion
Topic: Marshall 18 watt. One tube red plating
Replies: 29
Views: 6281

Re: Marshall 18 watt. One tube red plating

I don't have the patience to decipher your build topology to check this. Honestly, I'm not surprised and I don't blame you. I did say it was my own layout, and I only posted it because Richie asked. Thanks for your advice though, any help is appreciated. Yes, because sometimes you can see things th...
by Richie
Wed Feb 04, 2015 4:30 am
Forum: Technical Discussion
Topic: Marshall 18 watt. One tube red plating
Replies: 29
Views: 6281

Re: Marshall 18 watt. One tube red plating

If you swap the EL84s in the sockets, does the red plating stay with the same tube? Or does it make the other tube in that socket replate? When the tube red plates, the amp will start to drop in volume, and sound dull or fuzzy/distorted sounding. Got any pics of the chassis and wiring? Voltage chart...
by Richie
Sat Jan 31, 2015 1:59 am
Forum: Trainwreck Discussion
Topic: Pedal Mule 30 - Prototype build
Replies: 94
Views: 34325

Re: Pedal Mule 30 - Prototype build

I've tried many BZ7,and tried to like them,but just my opinion, I never liked them. They all seemed to induce noise/hum or were microphonic, and compared to a 12ax7, well, they didn't.
Plus I think if they did, you'd see everyone running to grab them or talking about them more.
by Richie
Fri Jan 30, 2015 6:05 pm
Forum: Technical Discussion
Topic: 5f6a bassman speakers configuration.
Replies: 33
Views: 5606

Re: 5f6a bassman speakers configuration.

Gibson was doing the different size speakers in one cab many years ago. Some even had oval shaped speakers. One had 4 oval speakers [2 on each side] and a single 12" I'd have to look up the model but it had a control that you could blend in which set of speakers for different sounds. Similar to the ...
by Richie
Thu Jan 29, 2015 6:21 pm
Forum: Dumble Discussion
Topic: 3x10" open back speaker choices ?
Replies: 7
Views: 1330

Re: 3x10" open back speaker choices ?

Hi , just been kindly offered today a surplus 3x10" open back combo ( a Roland Blues cube 60 which is blowing its speakers. ) Just wondered what opinions were on good speakers to go with my ODS 50W HRM if I run this as an extension cab to my existing 4 x 12 ( which is V30's ) any ideas ? cheers Pet...