[Heathkit] Heathkit TT-1A Question

[Ron Youvan]

   On 02/11/2017 02:40 PM, Gary K5JWK H. Harmon, Jr. wrote:

> My buddy has a restored TT-1A tube tester that is burping on a 6L6 and 6C5.
> The roll chart and booklet have matching settings.  Both tubes check bad.
> But, they check fine on my Hickok 639C and they work fine in the circuit.
> Spiral chart on the Heathkit is dated 11/78 and roll chart is dated 1/1/64.

> Any ideas?

   First, confirm the wiring and condition of the octal socket by 
measuring continuity from other 8 and 9 pin sockets using test pins
of the specified diameters with the tester powered down.
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.