-----Original Message-----
From: cctech [mailto:cctech-bounces at
classiccmp.org] On Behalf Of william
degnan
Sent: 20 December 2015 00:34
To: General Discussion: On-Topic Posts <cctech at classiccmp.org>
Subject: Re: EAI TR-10 Patch Plugs
On Sat, Dec 19, 2015 at 7:05 PM, Pete Turnbull <pete at dunnington.plus.com>
wrote:
> On 19/12/2015 20:41, Dave Wade wrote:
>
>> I can easily obtain 4mm plugs and sockets, and solder a resistor
>> between them, but when I try and mount them on a short rigid tube all
>> my efforts fail. The plug and socket need to be twisted in opposite
>> directions and any soldered joint just fails.
>>
>> Any usggestions?
>>
>
> Are you trying to screw them into a tube? Could you instead push them
> in and then fill the tube with epoxy or potting compound through a
> hole in the side?
I think this type of solution is the way its going but its not very neat compared with the
ones in the link below.
I was actually trying to use the sleeve that came with the plug and then push the socket
in the end.
>
> Could you make the tube in two short lengths, with a left-hand thread
> between them; screw the plug into one part and then screw the socket
> into the other while also screwing the two parts of the tube together?
>
I think I might manage using a longer tube and flexible hook up wire.
> Could you use a split (lengthways) tube, solder
the resistor to the
> plug and socket, and fit the tube on with epoxy?
>
That would work...
> Or if it doesn't need to be absolutely rigid,
mould some Sugru round
> the parts instead of using the tube?
>
Rigid is best as you need to fit a plug in the end and then plug it into the patch
panel..
Those are the thing. How on earth are those made? Some kind of contact so its clamped
together not soldered...
I may not follow your meaning here. Can't you just leave patch connections
loose as long as the ends of connection is secure? My Donner 3500 for
example has required improvisation.
http://vintagecomputer.net/donner/Donner-3500_voltage-test-plugs.JPG
--
The TR-10 has no input resistors in its OP Amps. You need to put them in the ends of the
cables as needed.
It?s a cludge but it makes converting an op amp to an integrator simpler...
Bill
Dave