[Test-Equipment] New-To-Me Simpson 260

[WA5CAB at cs.com]

Mike,

If it has pin instead of banana jacks, it is I think an original Series 1.  
On the later models, in small print near the bottom of the meter scale, you 
will see "Series N", where "N" is a digit between 1 and I think 8, 
sometimes followed by a letter "M" (Mirrowed) or "P" (Protected) or PM..  I am not 
absolutely certain when the change from pin to banana jacks occurred but I 
have never seen any evidence (either hardware or photos) where the panel has 
pin jacks and the scale has "Series" on it.  The earliest manual that I have 
is on a Series 2, but I can't locate it.  The Series 3 manual (which is 
actually shown as Series III, not 3) has a photograph that shows that it has 
banana jacks.  I don't know whether on the scale is says Series 3 or Series III 
but would guess the latter.  TB 11-6625-2552-35 lists Simpson 260 and then 
Simpson 260-3.  So I only have a database entry to prove that there was a 
Series 2 or II.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 01/21/2016 09:14:24 AM Central Standard Time, 
mikea at mikea.ath.cx writes: 
> I got a Simpson 260 yesterday at a local flea market. It has pin 
> connectors,
> not banana jacks; I don't remember if my dad's had banana jacks or pin 
> jacks. 
> I haven't had a chance to open it up yet and assess the condition of the
> innards. How do I tell which series it is in? Are there markers on the
> outside or inside? 
> 
> -- 
> Mike Andrews, W5EGO
> mikea at mikea.ath.cx
> Tired old sysadmin 
>