[Hallicrafters] Transformers

[Roger (K8RI)]

Rod Hogg wrote:
> Comment made regarding looking for transformers that most TV's only have HV
> on the CRT are not remembering the MANY 1000s of tube type TVs that were
> sold.  Remember there are "cranks and purists" amongst the TV collecter
> folks, just like Hallicrafters people, wanting to make their -Philco
> Predicta- or whatever running again.
>   
My first transmitter was a pair of 6L6's (long before they cost $30-$50 
each) that used the complete power supply from a TV set. Actually the 
transmitter was built on the old TV chassis. I stripped the chassis with 
the exception of the power supply, then using existing sockets added a 
6AG7 oscillator, and the pair of 6L6's (the ones then now call "black 
plate").   I could get the legal limit (75 Watts) out of that set up 
with out straining the standard TV power supply. Back in those days TVs 
were no where near as reliable as today's sets, were much more expensive 
in those days dollars compared to todays. If we used today's dollars an 
early color set cost more than a 60", top end set.  The same for 
computers.  Our first color set and my first computer cost over $4,000. 
In today's dollars that'd be between $10,000 and $12,000 Even the B&W 
tube type TVs were expensive and power hungry with power supplies 
capable of powering a 100 watt output transmitter.
> Digital, so what, all you need is a box to make it analog for the old sets.
> Have a Sylvania "Halo-Lite" set, works great, looks "cool".  It has a very
> larger power transformer, about the size of my SX-28's.
>   
and those boxes were literally free or close to it.  I picked up a pair 
of them for about $12.  I still have a 27" analog set in the basement 
that is run off the second output from my satellite receiver.

73

Roger (K8RI)
> Rod
> K0EQH
>
>
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