It Can Happen To Anyone, Trouble After Speedball Upgrade

Grainger49 · 2645

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Offline Grainger49

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Reply #15 on: February 11, 2014, 01:59:21 PM
Most recent update.  I got the package and replaced the transistors.  Well . . . 

I had the MJE350s backward.  Completely my fault.  But... When I plugged it in the HLMP 6000 that I replaced (my stock, not a Bottlehead replacement part) was burned out.  I surmised that they don't have a high enough current or forward voltage rating.  So I ordered from Digi-Key.

Those came today, I have a lifetime supply.

A couple of solder joints and everything is within the +/- 15% except terminal 2 (187.2V).  With tube variances that should be close enough.

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi244.photobucket.com%2Falbums%2Fgg7%2FGrainger49%2FSmiles%2Ficon_jump_zps2bc25f07.gif&hash=f3937eb973867f43180de7bbb9ec60d68d89ff30)

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi244.photobucket.com%2Falbums%2Fgg7%2FGrainger49%2FSmiles%2Fbanana_zpsef273fe8.gif&hash=8f31a2333cd74b425e7afc64425b3a413c51a6ca)

I'm plugging in headsets and going to pack this one off to the owner.  I feel guilty about how long this took me.
« Last Edit: February 22, 2014, 09:56:21 AM by Grainger49 »