Cary 300sei woes

[bozebuttons]

Took my Cary 300sei out of the garage not heated where it has been  unused for over a year, amp was pretty cold temps in the high 40s.

I should have let it get to room tempature but I didn't Amp turned on got a hum from the transformers I really never noticed before,Input tubes light up but My WE300bs never  light up.

Ideas? I have another set of we300bs ,but I don't want to take a chance installing them. I don't have any cheaper tubes to try.

 

 

[spritzer]

Open it up and see if there is anything amiss?  I think the tubes are AC heated in the 300sei so they should work unless the transformer is busted.  Edit:  Light up that is. 

Edited February 20, 2016 by spritzer

[jpelg]

Ooohhh, hope the amp is ok Tom. It has a special place in my heart since I first heard it 15 years ago.

Maybe have the guy who did the mods on it have a look?

[robm321]

I'm a fan of that amp too. Hope it is something simple.

[spritzer]

I just looked at the internal pics I have of the stock 300SEI and the heaters for the 300B's are bad...real bad.  They are just a tap off the transformer, fed through a diode bridge and into the tubes.  Quite possibly the worst way to do this. 

[jp11801]

Tom I would invite in a cheap pair of 300b tubes while sorting this out as the price on the WE just keep going up and up. Good luck as I really liked your modded Cary

[mikeymad]

my 300sei went silent years ago - (blew a resistor).  I replaced it - and it blew again - so that was not the issue. -- I have not gotten back to it...  (and you Don't want to see the inside of this thing.. ooph).. 

I would give Cary support a call as well - the people I talked to years ago were very nice and helpful (at the time).

good luck.

 

[bozebuttons]

I have seen the insides it a rats nest for sure. I will open it up when I get the chance.& look  for any visual signs/

a schematic would be helpfull mine is the older 11 watt version.

[DefQon]

Or get in contact with Dennis Had directly via his email and see if he can give some pointers on troubleshooting/what is wrong. He did so with a few Cary products that went south that I owned years back.