Search found 338 matches

by rhinson
Fri Apr 08, 2016 3:41 pm
Forum: Trainwreck Discussion
Topic: Available,another vintage variant of the Stancor A-3801 OT?
Replies: 6
Views: 2659

Re: Available,another vintage variant of the Stancor A-3801 OT?

Looks like it's similar in size to a A-3801 though it doesn't appear to have the unique 3 layer core that is unique to these. that's the butt stacking of the laminations in 3 distinct sections in a 3801. this hallodarson transformer looks more like a radiospares stack with regard to number lams sta...
by rhinson
Tue Jan 06, 2015 5:10 am
Forum: Trainwreck Discussion
Topic: Songwriter Group Build -- Not Gonna Happen
Replies: 202
Views: 46807

Re: Songwriter Group Build -- Not Gonna Happen

man after all these years what a sweet reprise! Hey 2015-----2006 called. it wants it's thread back :lol: rh
by rhinson
Sat Jun 07, 2014 4:01 pm
Forum: Technical Discussion
Topic: SD60 build completed! Clip...
Replies: 69
Views: 14105

Re: SD60 build completed! Clip...

for those interested in iron, the wind pattern of the naylor output is pretty close to the concorde/komet iron. the concorde set would be the one to choose since the 4.8k pri is closer to the 4.3k of the naylor. the power trannie will put you right in the same 490-500v range. and of course i have a ...
by rhinson
Sun Mar 02, 2014 7:25 pm
Forum: Technical Discussion
Topic: Any Naylor Superdrive love?
Replies: 50
Views: 16707

Re: Any Naylor Superdrive love?

Question: What does the switch do after the treble pot between the 560K's? (Between V2 and V3?) it just changes the effective value/taper of the treble pot--already lowered with 1 560k and then lowered once more by switching in the 2nd 560k. as you can tell, those guys bought 500k's in bulk and use...
by rhinson
Sat Feb 15, 2014 5:21 pm
Forum: Trainwreck Discussion
Topic: Trainwreck PT and OT originals. I have em!
Replies: 223
Views: 46870

Re: Trainwreck PT and OT originals. I have em!

i'm pretty sure bruno uses pacific, as i have seen their stickers on a cowtipper i believe. i think they may have made the komet 60 stuff as well, given the look and the buttstacking of the lams (ala the 3801/express style stack and wind). i have ( and still have) all the 3 different labeled specime...
by rhinson
Mon Jan 27, 2014 3:53 am
Forum: Technical Discussion
Topic: Any Naylor Superdrive love?
Replies: 50
Views: 16707

Re: Values?

Hi Rhinson, What values do you recommend on the grid stoppers? Decko given that there's a 100pf rolloff cap on the input, you probably don't need any----just have to try to taste and see what makes sense for you in combo with the cap. i'd do maybe 10k -33k and see if you like it better with or with...
by rhinson
Mon Jan 27, 2014 3:07 am
Forum: Technical Discussion
Topic: Any Naylor Superdrive love?
Replies: 50
Views: 16707

Re: Any Naylor Superdrive love?

cbass wrote:This one looks like it does
that's the post '96 version. the pre '96 version does not have grid stoppers. it connects the sheild to the plate and and makes use of the multipling factor of the miller capacitance to get a pretty decent top end roll off on the first stage. rh
by rhinson
Wed Jul 03, 2013 4:19 pm
Forum: Technical Discussion
Topic: The underground 30 is different how? Gut pics inside.
Replies: 17
Views: 4396

Re: The underground 30 is different how? Gut pics inside.

I made the mistake of buying one of these a few years ago. I was not blown away and it's been sitting in the basement of my store ever since. It's on my list of amps to trace and make a schematic for. Also some dumb ass modded the polarity switch into a half power switch and I think they didn't swi...
by rhinson
Wed Jul 03, 2013 3:02 am
Forum: Technical Discussion
Topic: The underground 30 is different how? Gut pics inside.
Replies: 17
Views: 4396

Re: The underground 30 is different how? Gut pics inside.

the basic gain stage/p.i. pre is the same as a regular ac30 topboost. the reverb is the standard fender standalone type wedged in from the front end, using an el84 (instead of 6v6/6k6) to drive the tank. in terms of topography, not sure how/where it's combined back in with the dry signal. also looks...
by rhinson
Sun Apr 21, 2013 7:38 pm
Forum: Technical Discussion
Topic: London pro by 65 amps what makes them sound different ?
Replies: 15
Views: 4995

Re: London pro by 65 amps what makes them sound different ?

Look here... 5th post down: http://forum.metroamp.com/viewtopic.php?f=7&t=30368 Tony I'm just watching this but thank you Tony! I went. I read. I laughed! from MetroAmp: Kind of funny how a guy who knew nothing about amps a few years ago is now considered one of the top builders Exactly what I thou...
by rhinson
Tue Jan 01, 2013 11:03 pm
Forum: Technical Discussion
Topic: 5 Volt center tap on Hammond PT/New AC30/2 build
Replies: 11
Views: 3557

Re: 5 Volt center tap on Hammond PT/New AC30/2 build

for tubes with 2.5v filaments as well----old 2a__ type triodes, 300b, etc. rh
by rhinson
Thu Nov 22, 2012 2:10 am
Forum: Technical Discussion
Topic: bruno cowtipper schematic
Replies: 96
Views: 30909

Re: bruno cowtipper schematic

Roe wrote:any source for pacific transformers online?
they have a website, with contact info, but they won't sell you bruno's numbers. rh
by rhinson
Tue Nov 20, 2012 11:07 pm
Forum: Technical Discussion
Topic: bruno cowtipper schematic
Replies: 96
Views: 30909

Re: bruno cowtipper schematic

here's my buddies cowtipper. as stated before, he uses pacific transformers. also the reverb tone control is the one from the dave funk book, essentially tacking in the 6g15 tone control; and a treble cap "boost" sw.---ala diaz, dumble, etc. rh
by rhinson
Sun Nov 18, 2012 3:45 pm
Forum: Technical Discussion
Topic: bruno cowtipper schematic
Replies: 96
Views: 30909

Re: bruno cowtipper schematic

yes they look like that. i've got a whole set of pics from an owner that bought his new and they look just like these. he uses pacific transformers, btw. rh