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trying to hack an old valve radio, into a guitar amp,

just bought this,EVEREADY SKY QUEEN valve/tube radio, going to try and turn it into a guitar amp, never worked with valve's before so there'll be lot's of question's, started unsoldering everything at the moment,

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Replies to This Discussion

Permalink Reply by GARAGE HERMIT on August 31, 2013 at 8:12pm

the pye record player amp's feed two 3 ohm speaker's in parallel, which seem's a strange setup to me, but it obviously worked ok, think the amp would still push a 4 ohm speaker,?

morgan jones has a few book's out, and a new one is coming out in october, just debating which one to buy,

another quick question, i've a speaker that read's 8 1/2 ohm's, now my 4 and 8 ohm speaker's read just under these value's ie about 3 and 6 ohm's, so is this a 10 ohm speaker,?

Permalink Reply by Peter Greed on September 10, 2013 at 7:06pm

A new Morgan Jones book you say. Nice result on the amp inspires me to get out the box of parts for my own Champ build, first to clean the shed.

Permalink Reply by GARAGE HERMIT on September 11, 2013 at 10:18am

there can never be too many champ's, start a thread so we can see your progress,

clean the shed, i know what you mean, i've got to move all this out of the way before i can start soldering,

Permalink Reply by GARAGE HERMIT on September 11, 2013 at 10:23am

here's another 5C1 based amp i've just finished, reclaimed transformer's and a 12" speaker out of an old church organ,

Permalink Reply by GARAGE HERMIT on October 3, 2013 at 8:01pm

i cant play guitar, but here's a sound clip, cant figure out how to post the actual video so here's the link,

http://youtu.be/Om6x4qUC9Os

Permalink Reply by Peter Greed on September 12, 2013 at 4:00pm

Solid bit of kit, how many can stand on it?

Permalink Reply by GARAGE HERMIT on September 12, 2013 at 9:53pm

^^^

you could probably rest a car on it, it's glued & screwed together, and it's just the right height to sit on,

just in case you have'nt noticed the volume knob goes to 78,!!!

Permalink Reply by Peter Greed on September 12, 2013 at 4:01pm

Will do, just have to finish a LP and set up my son's tele. Your shed beats mine, just.

Permalink Reply by GARAGE HERMIT on January 19, 2014 at 1:05am

have'nt made an amp for a while, too busy, so i decided to make another 5c1 type thing, re-claimed transformer's, old maplin's s/s amp cab and chassis, and an old dress for the speaker cloth, i think it look's 1960' ish, old celestion speaker in place of the generic one that was fitted, it had a hole in it anyway,

Permalink Reply by GARAGE HERMIT on April 16, 2014 at 10:18am

well, eventually finished it, that took a while, busy with other thing's,

only problem is i've the dreded 60hz hum, but when i plug the guitar in the hum nearly disappear's, anyone have any idea what's going on, ??

Permalink Reply by eric gittins on April 28, 2014 at 11:34pm

hey hermit,

did you get a fix?

dodgy input jack, not earthing when you unplug?

Permalink Reply by GARAGE HERMIT on April 29, 2014 at 5:28am

yes, fixed it, had it wired like this first,

[URL=http://s81.photobucket.com/user/w124-2door/media/valve%20amps/DSCF0002_zpsaf866aaa.jpg.html][IMG]http://i81.photobucket.com/albums/j236/w124-2door/valve%20amps/DSCF...[/IMG][/URL]

realised i had the vol & input wire's crossing the s/s rectifier, moved the s/s rectifier over to near the HT transformer, like this, and everything was ok,

[URL=http://s81.photobucket.com/user/w124-2door/media/valve%20amps/DSCF0004_zps3f381337.jpg.html][IMG]http://i81.photobucket.com/albums/j236/w124-2door/valve%20amps/DSCF...[/IMG][/URL]