[time-nuts] TS-2100 OCXO

[Greg Dowd]

I think you would have a decent chance of getting any 240 to work.  While we did have our own configuration, I think it was just to allow full range tuning across the subset of tuning voltages we could reach with our dac, which is really reaching, but maybe .5 to 4.5V.  

As long as the 240 spec voltage levels are the same, and the current draw is similar, it should be okay in my opinion.  I presume you have some schematics so you know what to change, like whether you have to dike out the onboard vcxo, jump something, etc.  It has been a while.  If there are some differences in steering, there are commands available to change sense, gain and filter constants.

It's been a long time so your mileage may vary.  I just looked at my TS2100 with 240 which has been running since the late 90s.  Dac is at 0x4f1f, plenty of tuning range left!


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf Of Gerhard Wittreich
Sent: Monday, October 28, 2013 5:31 AM
To: time-nuts at febo.com
Subject: [time-nuts] TS-2100 OCXO

In my quest to add an MTI 240 OCXO to my TS-2100 I ended up buying one on
eBay only to realize that MTI made many custom versions of the MTI 240
OCXO.  I had no idea what the specific characterisics of my MTI 240 (MTI
240-0545-C) were and how did they compare to the TS-2100 stock MTI OCXO
(MTI 240-0530-C).  I gave MTI a call and found someone willing to help.  He
dug out the data sheets for both OCXO's and even told me that the TS-2100
stock OCXO was still available and in stock.  Unfortunately, the price was
$350/ea +S/H...A bit more than I was willing to spend.

I tried to post this message to this list with the PDF's attached but the
message was reject because it exceed the 128kB limit.  If any one is
interested in these datasheets send me your direct e-mail address and I'll
forward them to you.

1.  MTI 240-0530-C  (Stock OCXO in TS-2100)

2.  MTI 240-0545-C  (Currently very available OCXO on eBay)

-- Gerhard
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