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are you helping or just making me jealous?

Hey Folks
The bug has bit again ....
I want to build a DR201 with 4xkt88 output section and looking for a chassis to no avail.
The Iron is quite heavy so it would have to be a good quality rigid chassis.
Any Ideas?

i got another while to look at this this morngin there seems to be something still wrong i plugged in y bias rite to the two tubes (i am not using the outer two tubes) from the second i turn it on they read 70 and 90 so i switched it off staight away pretty much they both read 490v within a volt of ...

with the preamp tubes in and the power tubes out - each of the power tube sockets reads the same on 4,5,6,7 = 533v 531v -35v and 530v respectively I just tried with the two tubes i HAVEN'T seen redplating in the center position and guess what - it plays! 2 bad tubes then? is that definitive enough o...

Ok - SO major redplating going on in an old dr103 (its my friends amp who got me interestred in the hiwatt sound. On first inspection i noticed one of the rectifier diodes had come off the turrett so i soldere that back up. I didnt realy know how to trouble shoot the redplating but i followed markh ...

often use a 360 to drive a 2x15 for bass

a totally rocking amp - esp for solid state - love the eq on it too.

he he
my friend got me one for my birthday a few years back

maybe so
but i dont know- one second i was playing - the next - gone
i tried running it in 50watt mode with only the centre two tubes but the same position tube lit up well started to light up about 8 seconds after switching it out of standby.
i'll check the bias though

Ok so got a new fuse at last!

unfortunately its redplating - I tried a different tube just incase but she still sizzles.

Where to start troubleshooting?

ireland

240v it is!

didnt hae time to probe around last night

really hoping it was just a loose connection of the power cord (kettle plug connection 3pin)

any idea what else causes that one to go?

Last night was giving the dr103 a good bass shakedown when i lost souund - only after 10 mins of playing. Anyway it turned out a burnt out 3A fuse the other 1A fuse is fine - Maybe just maybe the power chord could have ben loose and kinda wiggling half in and half out i'm not sure - would that cause...

Teach Computer Courses to 3rd level students, Webdesign,Photoshop, MS office that sort of thing - bit of maths,comunications and efl too. My other job is as a recording engineer in a studio where 3 of us kind of time share I'd prefer to be doing the later all the time but the former is a little more...

Just wondering the amp has gone dead as a doornail - not evn hiss - what would you be thinking as possible culprits?

Got a reply

and a bloody good one at that!

thanks mark - i emailed him again - hope he gets it this time