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Amraduk · 9th Sep 2011, 9:07 pm

Hello Mark,

I was looking at the recorder's service manual and noticed that the counter is 3 digits, not 4 as I thought! What threw me was that a Revox B77 I have, does have a 4 digit counter, so I assumed the G36 was the same It's been so long since the recorder had one fitted that I'd forgotten it was only 3!

The 30mm x 7mm dimension applies the the 4 digit one, the 3 digit one measures about 22mm x 7mm. Also, the 3 digit one increments by one digit for about two revolutions of the spool. With a 2-segement encoder, that would give 4 pulses per digit, so that would need to be divided by four to give a reading equivalent to the mechanical counter.

If I can obtain a 4 digit seven segment display that will fit in the 22mm x 7mm 'window', then I'll still use 4 digits, otherwise it will be 3 digits.

Regards,

Dave.

9th Sep 2011, 9:07 pm	#105
Amraduk Hexode Join Date: Jan 2007 Location: Welwyn Garden City, Hertfordshire, UK. Posts: 453	Re: 4 Digit Up/Down Counter IC? Hello Mark, I was looking at the recorder's service manual and noticed that the counter is 3 digits, not 4 as I thought! What threw me was that a Revox B77 I have, does have a 4 digit counter, so I assumed the G36 was the same It's been so long since the recorder had one fitted that I'd forgotten it was only 3! The 30mm x 7mm dimension applies the the 4 digit one, the 3 digit one measures about 22mm x 7mm. Also, the 3 digit one increments by one digit for about two revolutions of the spool. With a 2-segement encoder, that would give 4 pulses per digit, so that would need to be divided by four to give a reading equivalent to the mechanical counter. If I can obtain a 4 digit seven segment display that will fit in the 22mm x 7mm 'window', then I'll still use 4 digits, otherwise it will be 3 digits. Regards, Dave.