Heath GR-91 Info

[Richard Post]

Wally,

Can't help with the manual or schematic. Don't have one for mine.  Had to
repair and do alignment tweeking without manual but this is a relatively
simple set.   Can tell you that this is an AC-only set.  Power transformer
is there by design. I don't think that Heath ever stooped to making a true
AC-DC hot chassis or floating ground set.  Too dangerous.

73, Rich

>Greetings,
>
>Just picked up one of these, ratty case but the cute little thing works.
>S-meter isn't right, dial calibration is way off on most bands, but I
>can't resist at least making it as good as it can be short of a body
>shop.
>
>Strange to find a AC/DC sort of  tube lineup with a 50C5 audio output
>but has a isolation transformer. Must have been a AC/DC design that got
>converted for safety's sake.
>
>I'd sure like to find a schematic copy and some brief alignment
>instructions. Voltage chart could be useful to troubleshoot the s-meter
>problem too.
>
>Any copying costs/etc repaid.
>
>Thanks.
>
>Wally Gibbons
>Rockwall at tcsourceone.com

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