[Heathkit] SB-201/200 no output on any band
Tom Chesek
tchesek at epix.net
Sat Oct 18 18:29:27 EDT 2008
No change in grid current reading with increased drive. Tune and load have
no impact whatsoever.
New Harbach T/R relay was installed by me because existing relay was not
original and upon unkeying it would not drop out probably due to incorrect
resistance in circuit causing coil to hold contacts in trans position.
----- Original Message -----
From: "Rodger" <wq9e at dtnspeed.net>
To: "Tom Chesek" <tchesek at epix.net>
Cc: <Heathkit at mailman.qth.net>
Sent: Saturday, October 18, 2008 6:09 PM
Subject: Re: [Heathkit] SB-201/200 no output on any band
> Tom,
>
> Does your grid current reading on the SB-200 appear to increase normally
> as you increase drive? What impact do the tune and load controls have
> upon plate and grid current?
>
> Verify that the contacts on the T/R relay are working OK and that the
> contact associated with the transmit output (from the coax cable from
> the tank network) isn't burned from its CB days.
>
> 73, Rodger WQ9E
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