[R-390] A vs non A

[rbethman]

The Alignment procedures are in TM 11-5820-357-35, 9 March 1962.

This begins on page 91.

Test equipment utilized/specified:

Electronic Voltmeter TS-505*/U.
Signal Generator AN/URM-25(*)
Voltmeter, Meter ME-30(*)/U
Insulated Alignment tool.

Note that *NO* sweep generator is specified NOR used.

So the whole Sweep Generator methodology is exactly as Roger states.

Following the U.S. Army procedures will not screw up your R-390.

N0DGN

On 10/11/2012 12:14 PM, Roger Ruszkowski wrote:
>   
> R390 IF's are no more complex than the R390/A
> Either can be done very well with a simple signal generator and volt meter.
>   
> The Sweep generator myth is in with moster gold plated Audio cable.
> Can I sell you some old bridge stock? I have original paper certificates.
>   
>