[Heathkit] SB-300 and SB-301 Filters

[Ron Youvan]

   Lee, w0vt bahr wrote:

> Awhile back I asked what the differences were between the SB-300 and SB-301 receivers.  Among other things,  I was told the AM filter was widened on the AM filter and the CW filter was narrowed.

> That said, are the filters interchangeable between the two receivers?  I know the IF frequency are the same, but are the footprints the same so the pins of the filters will mate up with the sockets of either receiver?  (Can you plug in a SB-300 filter into a SB-301 and visa versa)?

   Perhaps; the SB-401 was different from the SB-400 because they added a switch (ganged with 
another control) that allowed one VFO control the transmitter and the receiver as in a transceiver.
The changes between the SB-301 and the SB-300 may have been to facilitate that connection.

   I have a SB-401 and SB-300 (with a bandswitch problem) and I would like to know.
-- 
    73 Ron KA4INM - All E-mail sent to this address shall linger in the Google cloud forever!