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-   -   cheapest output transformer for a SE EL84 guitar (http://www.diyaudio.com/forums/tubes-valves/24677-cheapest-output-transformer-se-el84-guitar.html)

tschrama 22nd December 2003 10:49 PM

cheapest output transformer for a SE EL84 guitar
 
Hi all,

I need the cheapest output transformer for a SE EL84 guitar amplifier, not Hi-Fi or even Low-Fi. I have searched but the cheapest I could find was the Hammond for 39$...

Maybe someone can beat that figure? Just post a link and brand name so I can look further.

Thanks!

Best regards,
Thijs


(60mA DC, 5KOhm about ?, 100-10KHz)

Tom Bavis 23rd December 2003 12:34 AM

Fender Champ replacement for 19.95? Cheap enough?

OK, how about a 5K : 8 Ohm for $8.99

Both from Uncle Ned at Triode Electronics.

http://store.yahoo.com/triodeel/index.html

li_gangyi 23rd December 2003 02:09 AM

you could try a standard cheapie 12V-0-12V 220V sec trafo instead...

PeteMcK 23rd December 2003 04:19 AM

Side of the road?
 
I've just picked up 2 old 60's valve stereo - radios off the side of the road in the last week...... they're going to end up as guitar amps - that's the cheapest way to get transformers!!!
(mind you, I've been looking out for such items for about 3 years with no luck; now I have 3 of them LOL)

Colt45 23rd December 2003 05:54 AM

get the $10 %k:8 from triodeel. I have used them before, don't seem too bad for the price. (more than enough for guitar)

planet10 23rd December 2003 06:50 AM

I have quite a few single EL84 OPTs... a particularily nice ferrograph one... postage a 1/3 of the way round the world might make it cheaper to look locally.

dave

SHiFTY 23rd December 2003 08:28 AM

Quote:

I have quite a few single EL84 OPTs... a particularily nice ferrograph one...
Hehe I managed to get 2 identical ferrograph reel to reels for $30, sold the 4 Mullard EL84s on eBay for $60, kept the 4 mullard ECC83 and EF86, and use the transformers and chokes in a SET amp!

Damn old stuff can be useful!!! :D :D

And I have got great sounding guitar trannies out of crappy old tube radios that no-one wants... Bigger is better, generally small trannies don't distort very nicely.

Quote:

I've just picked up 2 old 60's valve stereo - radios off the side of the road in the last week.....
Anything decent? If you have some big PP trannies in them, might be worth rebuilding for hi-fi...

tschrama 23rd December 2003 09:06 AM

Thanks guys!

I really appriciate it. The output transformer seems the most expensive, but 9$ is a big improvement...good tip. I'm thinking about building a serie of 10 to resell them localy. This makes prive trades difficult, but the thanksfor the offers.

You were kidding about the 12-0-12/220 tranfer weren't you?

Best regards,
Thijs


Anybody got a power supply transformer tips too? 200V/300V@60mA plus filament...?

li_gangyi 23rd December 2003 10:09 AM

no I wasn't...I tried it for a 6V6 Guitar amp...it works...

bournville 23rd December 2003 11:37 AM

Tschrama,

The postage on a mains trannie from the UK would be a lot cheaper to the Netherlands than from the US. Try Maplins:

http://www.maplin.co.uk/

They have a mains trannie suitable for your amp - code XP27E - which has a 240v secondary at 100ma and 6.3v at 1.5A. Cost 12.99 (18.50).

I've tried using mains trannies as output trannies in amps before, but I'd only recommend it as an emergency replacement. Frequency response often leaves much to be desired and core saturation is always possible (although not a problem in a push-pull amp).


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