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Author Topic: I ask again to identify an RCA Choke  (Read 233 times)
AJ4CU
Member

Posts: 75




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« on: July 17, 2008, 02:24:48 PM »

Hello All!

I am repairing an SB-221 amplifier and need to replace the 1Mh rf choke that grounds the grid on one tube, in looking through my repair parts I have come across an RCA PN-204402 RF Choke however I have no RCA parts guide to identify it.
Does anyone have any info on this part??? Please help...Thanks in advance...

73 DE AJ4CU

Hari

Please guys I know all about tying the grids right to ground but in the case of another issue that caused the burn perhaps it is best to have something to burn rather than a more expensive part, beside this is for another ham and he wants it like it was designed.

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W6VPS
Member

Posts: 369




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« Reply #1 on: July 17, 2008, 05:13:26 PM »

Try posting your queston here..
http://groups.yahoo.com/group/HeathKit_HFAmps/

and don't neglect the amplifier forum right here on good ole eHam

http://www.eham.net/forums/Amplifiers

Maybe you'll have better luck.

73 - Paul/W6VPS
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KB1LKR
Member

Posts: 1899




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« Reply #2 on: July 17, 2008, 05:49:45 PM »

The SB-220 & SB-221 used 1 mH (one millihenry) RF chokes at each tube grid.
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PHILA
Member

Posts: 28




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« Reply #3 on: July 17, 2008, 06:43:12 PM »

Don't know if this is it, but they have RCA 204402 listed for 0.93 each. Also, they call it a base =/

You may want to call them and see what it is.


http://www.vancebaldwin.com/products/?204402
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