[RFI] OT Curiosity - Bel HB5-3/OVP-AB

[Tom Frisz]

Hello from Northern Indiana.

I've got a bunch of similar supplies - a result of past jobs in computer 
service and parts center jobs in the last century.

A number of years ago i stumbled on this site that has more than you 
could ever want to know about using and possible mods for these supplies:

http://www.djerickson.com/p1hack/

The ones I have came from pre-PC days when office computers were desk 
sized and required 5 volts at decent amperage for TTL circuitry and + 
and - supplies for other circuits.

73,

Tom N9DD


On 7/15/2021 5:52 PM, N4ZR wrote:
> I got this supply as part of a purchase of a couple of SDRs.  It's 
> linear, input voltages of 100-240 volts, 5 volts at 3 Amps out, and 
> has a very elaborate rectifier/regulator board with a specialized 
> regulator IC.  In some respects it is tempting to keep around to power 
> 5-volt devices, but its physical packaging is awkward.  The 
> transformer and circuit board are mounted on an L-shaped piece of 
> thick aluminum, which has 8 large holes that seem intended for some 
> sort of standard mounting.  It is still for sale on the manufacturer's 
> web site.
>
> More to satisfy my curiosity than anything else, does anyone know what 
> it's intended for.
>