[R-390] HP-606* vs URM-25*?

[Marshall M. Dues]

Roy Morgan wrote:
> At 04:39 AM 1/18/2005, ELDIM wrote:
> 
>> Hello Tom & Crew,
>> The HP-606A is definitely a step up from the vintage AN/URM-25(*) series
>> Signal Generators.
> 
> 
> I agree, but:
> 
>> ....  The B version of the generator had 
> very few differences compared to the A. The ones that I can think of are:
> 
>  - possibly some solid state parts in the power supply
> 

The HP-606B has an all solid state +300 volt, -200 volt, and +25.6 volt 
regulated power supply.  It also has an all solid state calibrator A2 
assembly.  The rest is TOOBS. I used one in the avionics business for 
years, and have one in my hamshack now.

Regards,

Marshall Dues, WB5MYO
Katy, Texas