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Old 2nd Oct 2020, 6:06 pm   #8
russell_w_b
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Join Date: Jul 2007
Location: Penrith, Cumbria, UK.
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Default Re: Fitting a BT Viscount MF circuit board into a Viscount pulse dialling phone

Quote:
Originally Posted by Nickthedentist View Post

But I have to say that the cleaner lines of the ~15 year older original get my vote. The InDEX looks cheap and fussy in comparison.
I agree, Nick. The InDEX system worked very well and the DT1 instruments (later provided by Avaya) were great. But the basic DT3 instruments, as shown, were prone to failure. Not due to the complexities of the circuitry within, but simple things like mic failure, switch failure and poor cordage.

I had a Viscount for years (not the one shown) and ultimately it suffered from keypad intermittency, but this was rectified by cleaning. The weakest point was severe discolouration. A nice telephone all the same. I still have it so may try dunking the case in 'Oxy Action' in sunlight (a cheap 'Retrobright' process).
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