[Milsurplus] [ARC5] [MRCA] TBW-4 IF Transmitter

[Michael Hanz]

An easier route might be one of the laboratory inverters - like this one 
I restored from a $100 ebay parts unit a couple of years ago. The only 
noise is from a pair of muffin fans on the rear.



On 1/15/2023 12:59 AM, Bob via ARC5 wrote:
> To the TBW4 crowd
>
>     Any thoughts about using an 800 Hz inverter to power the TBW 
> unit(s) ah natural?  Using cheap power fets and a surplus big core 
> toroid as the basis.  Standard iron E core units would probably be a 
> stretch at 800 Hz and not sure how the calculations for those would 
> go.  In any case as an hoarder of the TBW units and an original Power 
> supply it's just a thought.  I have a good source of huge 12 or 24vdc 
> units to power such an inverter.  Efficiency is not a criteria in the 
> design as let's face it, the TBW4 is hardly the epitome of efficiency 
> in the first place.
>
> thank you e s 73
>
> Bob, KE6F
>
> -----Original Message-----
> From: J Mcvey via ARC5 <arc5 at mailman.qth.net>
> To: List Milsurplus <milsurplus at mailman.qth.net>; Military Radio 
> Collectors Association (mrca at mailman.qth.net) <mrca at mailman.qth.net>; 
> ARC5 <arc5 at mailman.qth.net>; Mark K3MSB <mark.k3msb at gmail.com>
> Sent: Sat, Jan 14, 2023 4:19 pm
>
> Wow , that is quite the machine!
> On Friday, January 13, 2023 at 07:48:19 PM EST, Mark K3MSB 
> <mark.k3msb at gmail.com> wrote:
>
> I am VERY excited to finally acquire one of these to go with my 
> Rectifier Modulator Unit and HF transmitter.
>
> Some detailed pix here (toward the bottom of the web page):
>
> http://www.k3msb.com/tbw4/writeup.html
>
> I have a pair of RBM receivers to go with these units.  Hopefully 2023 
> will be a VERY interesting restoration year for me!!!
>
> 73 Mark K3MSB
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