Search found 21 matches

by GoghVan
Sun Jun 30, 2013 3:09 am
Forum: Technical Discussion
Topic: Power Supply Dropping No Current Draw
Replies: 1
Views: 506

Re: Power Supply Dropping No Current Draw

OK.....this was an old project that I made some changes including putting smaller output and power x'formers. It just dawned on me....that was the problem. The power x'former doesn't have a center tap so I'll need to dump the diodes and install a full wave rectifier. LOL...duh... I guess that's what...
by GoghVan
Sun Jun 30, 2013 2:46 am
Forum: Technical Discussion
Topic: Power Supply Dropping No Current Draw
Replies: 1
Views: 506

Power Supply Dropping No Current Draw

OK, I haven't seen this one before. Here's what happens. With all of the tubes out I get high enough voltage from the power supply. Plug in a few tubes, even with the outputs not installed and I get only about 20 volts. The amp works at the low voltage(with 2 12xxx7's and 2 6L5's, as I have it hooke...
by GoghVan
Sat Jun 15, 2013 8:14 pm
Forum: Fender Discussion
Topic: Vibro Champ Conversion suggestions.
Replies: 7
Views: 1879

Re: Vibro Champ Conversion suggestions.

I will use the chassis in a head cab so I'm not worried about hitting the speaker.

Thanks
by GoghVan
Sat Jun 15, 2013 7:13 pm
Forum: Fender Discussion
Topic: Vibro Champ Conversion suggestions.
Replies: 7
Views: 1879

Re: Vibro Champ Conversion suggestions.

I know I'll have to change the X'formers. I can use a SS Rectifier and use the old rectifier tube socket for the second output tube. If I'm reading the schematic right the Normal ch of a Deluxe (not including Rev or Trem) only uses 2 preamp tubes, the same with the Champ II, etc.. I'm curious if any...
by GoghVan
Sat Jun 15, 2013 5:50 pm
Forum: Fender Discussion
Topic: Vibro Champ Conversion suggestions.
Replies: 7
Views: 1879

Vibro Champ Conversion suggestions.

Long story short I recently picked up a '78 Vibro Champ with: 022905 Output X'former 022772 Power X'former This amp is slightly different than the typical schematic I see for the VC in that it has (physically and on the schematic- old Groove Tubes book) 420V on the 6V6 plate V 342V on th AA764 versi...
by GoghVan
Fri Jun 14, 2013 12:33 am
Forum: Dumble Files
Topic: Tweeked D'Lite Version?
Replies: 2
Views: 2764

Re: Tweeked D'Lite Version?

Teleguy61 wrote:Here's a start.
There is plenty of info to be located by the Search function.

http://ampgarage.com/forum/viewtopic.ph ... e+versions
Thanks. I downloaded a more recent version. It's not drastically different.
by GoghVan
Thu Jun 13, 2013 2:43 pm
Forum: Dumble Files
Topic: Tweeked D'Lite Version?
Replies: 2
Views: 2764

Tweeked D'Lite Version?

Hello People! It's been a while since I've been here and I am in need of some guidance. About 1.5 yrs ago I started a Tweeked D'Lite amp. I got the chassis & boards from Moss and the relay brd and other parts from other distributors. No problem there. However, if memory serves me there were a lot of...
by GoghVan
Thu Mar 10, 2011 6:03 pm
Forum: Dumble Discussion
Topic: Bias on Princeton/D'lite/Deluxe
Replies: 2
Views: 630

resistors

The resistors read 1.2 ohms and 1.1ohms and are 1% 3W
by GoghVan
Thu Mar 10, 2011 5:03 pm
Forum: Dumble Discussion
Topic: Bias on Princeton/D'lite/Deluxe
Replies: 2
Views: 630

Bias on Princeton/D'lite/Deluxe

I've moded an old Princeton amp. I kept the B+ but a lot of the amp is wired like a "D'lite Tweeked" using the Princeton/Deluxe layout in the amp. NO relays or OD section. Here's my concern. On both output tubes: Pin 3: 399V Pin 4: 400V Pin 5: -43.6V Pin 6: 401V Pin 8 which has a 1ohm resistor that ...
by GoghVan
Wed Jan 26, 2011 12:27 pm
Forum: Dumble Discussion
Topic: About Moss of Brown Note
Replies: 57
Views: 12231

Business

Hey...you're BOTH making some good points. If parts are not a problem I don't see how one can't make money building amps if you have a lot of orders. And good support people are needed in orders, parts, receiving, packing, etc...But you can train almost anyone to do those jobs. I know...I've trained...
by GoghVan
Wed Jan 26, 2011 1:12 am
Forum: Dumble Discussion
Topic: About Moss of Brown Note
Replies: 57
Views: 12231

Techs

After years of being in the electronics repair/refurb business I found that it was usually not difficult to find good help. The caveat is...you have to pay them well. Most Srv/repair centers etc. don't because they think it's too expensive. Quite the contrary. I've found that if I paid a good tech (...
by GoghVan
Sun Jan 23, 2011 2:12 pm
Forum: Dumble Discussion
Topic: About Moss of Brown Note
Replies: 57
Views: 12231

Repairs

LOL....At any one time I had between 7-12 techs working with my partner and myself. In a typical day a tech would repair between 8-20 units. Sometimes more if they were easy repairs to portable units or mods that needed to be performed. With one co. we handled all returns from dealers East of the Mi...
by GoghVan
Sun Jan 23, 2011 3:46 am
Forum: Dumble Discussion
Topic: About Moss of Brown Note
Replies: 57
Views: 12231

Amp

I just read a thread on the Brown Note Forum where some customers are waiting nearly 16 Months for a kit with almost NO communication. I wish I had known about his before I placed an order. There was NOTHING on the checkout page that noted a backorder and NOTHING on the notice of reciept of payment ...
by GoghVan
Thu Jan 20, 2011 12:03 pm
Forum: Dumble Discussion
Topic: D'Lite and VVT X Model
Replies: 6
Views: 1388

Amp Clips

Yes the VVT X amp sounds really nice but right now $1K is a bit over the top for me so I'll have to go for a build. In fact a number of the VVT amp clips sound great. They've made an art of tweeking that sound.

Thanks for the input people....I'd like to hear more.....
by GoghVan
Mon Jan 17, 2011 5:00 am
Forum: Dumble Discussion
Topic: D'Lite and VVT X Model
Replies: 6
Views: 1388

D'Lite and VVT X Model

Just for the record: I don't own one and I'm in no way associated with VVT Amps. I've got to say that the video of Jack Pearson playing the X Model sounds excellent. In my opinion, many of the mod'd D'Lite amps sound pretty good but a bit hard edged and not as smooth in OD. Anyone heard any clips of...