[ICOM] ICOM Equipment Sale
we1x at comcast.net
we1x at comcast.net
Mon May 23 06:58:56 EDT 2005
There were also (a) a number of problems fixed by a firmware upgrade(b) rotary encoder would sieze up and needed to be replaced (Icom used a new vendor for this part from what I was told), (c) display would dim a bit on cw transmit, and (d) a few other odds and ends.
Icom did all the fixes and upgrades in Bellvue as in-warranty repair. However, I think around SN1900 all were incorporated during production.
Harry WE1X
-------------- Original message --------------
> John, NE0P wrote:
>
> "As I may be looking to acquire a 775 in the next year to 18 months, what
> is the difference between the low and higher number serial numbers?"
> ==========
> A friend of mine had a low S/N 775 and it had two major problems:
>
> 1) When operating split, the receive VFO put out a weak signal on the
> receive frequency (i.e., the DX station's frequency). Needless to say
> other stations trying to work the DX station did not appreciate this.
>
> 2) When used on CW to drive a linear amp, there was beaucoup overshoot on
> the first dit or dah sent, resulting in a brief overdrive condition to
> the amp, causing the amp to fault.
>
> The owner complained to Icom about the problems (which all early S/Ns
> have) and they exchanged it for a newer (higher S/N) 775, even though his
> original 775 was several years old (apparently they did this because they
> knew their early S/N product violated FCC regs). This cured the
> problems.
>
> I have no idea of what the S/N is where a bad 775 became a good one.
>
> 73, de Earl, K6SE
> ----
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