[ARC5] Minimum test equipment

[John Hutchins]

All -

Ditto !  Very stable instruments - they make the HP8601A's look bad,  I 
have 2 HP8601A's in working condition and the the (LM-13's and the 
BC-221-AK's) 2 each are by far more stable even on the low end.   The 
HP's drift all over the place;  I set the FREQ MTRS to calibrate 
setting, can hardly get the HP8601A's output signal to lock on to the 
cal signals and Zero beat.

Hutch


On 2/21/2012 11:19 AM, Kenneth G. Gordon wrote:
> As John said, a BC-221 and a good VOM are a good starting point.
>
> I have two BC-221-AKs and use them routinely to align receivers by setting
> one at the top end and one at the bottom end of the band I am aligning.
>
> One interesting thing about the BC-221: they were designed over 70 years
> ago, and are STILL valuable and useful to this day. There are always several
> for sale on eBay at prices ranging from the totally ridiculously high to
> amazingly low. The three versions which include modulation are the most
> useful of the many models. These include (if I remember correctly) the AK,
> AL, and AM models.
>
> ALL LMs include modulation, and those usually sell on eBay for even less
> than the '221 since many sellers don't know what they are.
>
> Yet, IMHO, a decent scope is possibly the very best tool any electronic shop
> could have.
>
> And for alignment of receivers, a sweep generator is indispensible.
>
> Ken W7EKB
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