| Author |
Message |
    
Cornbrown
Intermediate Member
Username: Cornbrown
Post Number: 130
Registered: 7-2005
| | Posted on Monday, June 12, 2006 - 12:30 pm: | 
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What is the SAFE and correct way to Discharge the static charge and Ground my KLV1000, so I can change the Tubes I do not want to kill myself or damage my amp.I am upgrading from the OEM tubes to the Russian built tubes.
Thanks |
Chad
Advanced Member
Username: Chad
Post Number: 919
Registered: 11-2004
| | Posted on Monday, June 12, 2006 - 2:08 pm: |
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Drain the plate supply thru a 1K resistor and keep that jumper attached to the plate voltage supply at all times when the lid is open. HV caps can BUILD a residual charge even when powered off. Don't forget the jumper before firing it up, words of wisdom 
Chad |
Cornbrown
Intermediate Member
Username: Cornbrown
Post Number: 131
Registered: 7-2005
| | Posted on Tuesday, June 13, 2006 - 7:37 am: |
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Thanks Chad.
I have two high value resistors that I am going to connect in parallel with some insulated wire with aligator clips...and use this to drain the caps. Then I will ground the plate caps to the chasis, and keep the chasis connected to my ground bus. |
Chad
Advanced Member
Username: Chad
Post Number: 920
Registered: 11-2004
| | Posted on Tuesday, June 13, 2006 - 10:19 am: |
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Bingo, I use something very similar. it's a 1K resistor 5W and an old alagator lead cut in half. Don't forge to heat-shrink the resistor leads so it's all insulated. Make sure you get a good bite on the connection.
Chad |
Cornbrown
Intermediate Member
Username: Cornbrown
Post Number: 132
Registered: 7-2005
| | Posted on Tuesday, June 27, 2006 - 8:28 am: |
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Well the Russian tubes came in the mail today.. Got them for a great price. It took me a mere 30mins to pull the old whimpy looking OEM tubes and install the stout looking Russian tubes. I had to run to Rat Shack to get a replacement 4amp fuse. I am currently burning in the new tubes before I start keying the amp. I keyed the amp one time in low setting and it is swinging to 600 watts!!!! whoooo hooooo. I'll let them burn in for a few days, then I will tune the amp good and let her swinggg. Discharging the amp was a breeze too. I used two 100K ohm resistors wired in parallel and alligator clip ends to bleed the static charge from the amp to ground for about 15mins. Then I used a screw driver to short from top of the tubes to the chasis. After that I was good to go. I am going to reset the dead key from my radio into the amp. With these tubes I should see over 1200 watts easy on AM.
Thanks Chad for the help. |
Chad
Advanced Member
Username: Chad
Post Number: 952
Registered: 11-2004
| | Posted on Tuesday, June 27, 2006 - 9:59 am: |
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Good news! I have always preferred the russian tubes myself but I do mostly AF work. If The customer wants NOS American I will source them and they will pay, but Sovtek and Svetlana's seem to do well for me. Sovtek's a little better in terms of durability and abuse.
Chad |
