[Boatanchors] Opinions sought on Harvey Wells TBS-50C
George at maiergroup.com
Mon Mar 12 12:48:51 EDT 2012
If you have the C version, it should have a mic pre-amp built-in, which
means you can use a high impedance crystal or dynamic mic. IMHO - treat
the TBS as a back up rig only, a DX-100 is a much better choice if you
have one. If you do decide to use the TBS, replace C16 ASAP, they're
notorious for shorting out which puts B+ on the RF output connector. I
never understood why they didn't shunt feed the pi-network to keep B+
off the bandswitch.
73, George - W1LSB.
On 3/11/2012 10:37 PM, Wally Gibbons wrote:
> Just acquired one of these in quite good condition. This is the C version
> with the modulator and 6L6's.
> Only one modification I can see, it's got a SO-239 installed for RF output,
> and someone took out the 6L6's. No sweat, I have quite a few of those
> around here.
> However, before I build up a power supply for this, I wanted to get
> opinions on the usefulness of this transmitter.
> Is the power output "respectable" meaning can one expect to make contacts
> with 25 watts AM? And how about audio quality?
> Not having carbon microphones lying about, I'd probably have to make a
> small microphone amp to drive the 6L6's with.
> I'd probably use it on 80 meters. My antenna is a huge horizontal loop fed
> with a Johnson matchbox.
> Is this little rig a waste of time, and would I be better off devoting
> effort into getting my DX-100 restoration done, and get that on the air
> Comments and opinions most welcome....
> Wally Gibbons, WB7ASQ
> North Logan, Utah
> Boatanchors mailing list
> Boatanchors at puck.nether.net
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