[ForSale-Swap] Hewlett Packard 1740A addenda

[Eric Jones]

de N4TGC Eric

That HP 1740A further describes thusly: I get a good, bright trace (no 
screen burn); brightness, focus, and horizontal posn are fully controllable; 
vertical posn jumps when the control(s) are moved; trace flickers on and 
off.  IOW, it has a HV intermittent and dirty controls (not surprising, 
considering it's been a shelf queen for many years).

The package includes power cord, 10006D probe, X1 / X10 generic probe; 3 
"tips 'n' klips" assortment bags; operator's guide and service manual, all 
in the factory brown vinyl bag that's glued to the top shell.

It's missing two push-button tops ((INT / EXT, & EXT divide-by-10), one 
plastic handle-pivot cover, and all four rear feet are broken off.  The 
front needs cleaning, and obviously so does the innards ...
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I have two other solid-state HP o'scopes, the 182C and USM-281A, both of 
which use removable modules, which are prone to tarnished contacts (before I 
use them, I have to pull the modules and clean the contacts, ever' time!). 
Contrariwise, my DuMont 1062 "re-compete" (an HP copy for the gummint) has 
fixed guts, and nary gives me such a problem: so this 1740A, also having 
fixed guts, will tend to stay fixed once it is ... of my 32-ish 
CRT-containing devices, sand-state jobs are the RCA 505*, two Conar 255, and 
LBO 501*.  All the rest are tube-type.

BTW, during bouts of insanity, I collect Conar tube gear, and I'm lacking 
the Model 250 o'scope and 280 sig-genny.  I take trades ...

* Conar sold these in the 70's, along with the RCA WO-33B, which I also have 
(and use in the shop, as a lo-freq. scope)