On 05/04/14 21:53, Jim wrote:
I finally had to dive into my Racal Dana 1992 counter, after it had
developed several bad switches. I found that through-hole 6x6mm tactile
switches with four leads will fit in the counter pcb holes diagonally. That
is, if you trim off the leads from two
Ulrich Bangert df6jb@... writes:
Gentlemen,
I know I am not the only one in this group to have difficulties with
weak
tactile switches on Racal-Dana's 1991/2/6 range of counters. The other day
I
talked to the chief technician at Rosenkranz-Elektronik which is one of
the
biggest
In a message dated 05/04/2014 22:10:50 GMT Daylight Time, b...@jimbixby.com
writes:
I finally had to dive into my Racal Dana 1992 counter, after it had
developed several bad switches. I found that through-hole 6x6mm tactile
switches with four leads will fit in the counter pcb holes
Hi,
I did the same kind of replacement in my garden irrigation timer. It had
membrane switches and I replaced them by ones very similar to yours, but
because the switches were of the flat sandwich type it needed quite
mechanical work. Aesthetically the result was perfect, and the tactile
I had the same dead button problem with the Racal 1992
counter. Tactile switches, manufactured by Alps, are sold on mouser(dot)com.
I used the 9.5 mm actuator (mouser part number 688-SKHHPP, SKHHPPA010,
6.0x6.0x9.5mm 160gf). The actuator is slightly recessed from the front
panel. The longer (13
On 04/22/2012 06:41 AM, Charles P. Steinmetz wrote:
Stewart wrote:
It's a design fault and eventually all of them will fail.
I'm not convinced of that. There has been substantial discussion of
Racal switches on the list in the past, and I suggested at one point
that the failure mechanism
I made a successful repair of a Racal 1991 counter that I originally
bought as a spares unit, the original switches and switch caps had already
been
removed and discarded, but decided after all that it was too good to just
use for parts, especially as all that ever seems to fail anyway are
Gentlemen,
I know I am not the only one in this group to have difficulties with weak
tactile switches on Racal-Dana's 1991/2/6 range of counters. The other day I
talked to the chief technician at Rosenkranz-Elektronik which is one of the
biggest surplus suppliers in Germany.
He knew the problem
Chris Stake
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Ulrich Bangert
Sent: 21 April 2012 11:18
To: Time nuts
Subject: [time-nuts] Racal-Dana tactile switches
Gentlemen,
I know I am not the only one in this group to have
...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Ulrich Bangert
Sent: 21 April 2012 11:18
To: Time nuts
Subject: [time-nuts] Racal-Dana tactile switches
Gentlemen,
I know I am not the only one in this group to have difficulties with
weak
tactile switches on Racal-Dana's 1991/2/6 range
Stewart wrote:
It's a design fault and eventually all of them will fail.
I'm not convinced of that. There has been substantial discussion of
Racal switches on the list in the past, and I suggested at one point
that the failure mechanism (dry, cracked rubber) could be related
to the
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