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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 3rd January 2010, 06:53 PM   #1
royd55 is offline royd55  United States
diyAudio Member
Join Date: Dec 2009
Default Checkout for Simple Se

I am going to order my pwt and opt's from Edcor tommorrow.

I was reading ahead to see what the checkout procedure would be for the simple se and couldn't find a specific process on the tubelab site. I did see mention of a cd that was included with the board. I don't think i got one with my board, but if i did, i can't find it.

I read the safety pages on the website and have purchased 4 voltmeters and have the minigrabber connections on them.

Thanks in advance.

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Old 3rd January 2010, 07:09 PM   #2
SGregory is offline SGregory  United States
diyAudio Member
Join Date: Apr 2003
Location: Southern Tier NY
The Cd is on his web site. The procedure I used was to:
With No Tubes:
1) Double Check all connections
2) Check filament voltages

With Rectifier Only
1) Verify B+ (briefly and depends on PT voltage. Don't want to exceed cap ratings)

With 8ohm resitor across output and all tubes
1) Check for no AC at output.
2) Check B+
3) After a few minutes make sure tubes are not showing hotspots

With Cheap speaker listen to it.

It is autobiasing so you should not have to adjust any setpoints. Have fun and be safe.
Living Life Doing the Waltz in 4/4 meter.

Last edited by SGregory; 3rd January 2010 at 07:10 PM. Reason: Fixed some stupid typo's
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