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HP 45 High Precision Timer
05-31-2017, 08:07 PM
Post: #13
RE: HP 45 High Precision Timer
One forum member asked for schematics of HP 45 High Precision Timer versions. Thank you because up to now I had only hand sketches...

   
   

Unfortunately Si501 programmable oscillator of version 2.0 went out of production in 2016 and you need a programmer for it. As I have some units left I can still produce some boards. LTC6900 of version 1.0 is still available.


Attached File(s)
.pdf  HP45Timer10.pdf (Size: 17.37 KB / Downloads: 15)
.pdf  HP45Timer20.pdf (Size: 17.75 KB / Downloads: 19)
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Messages In This Thread
HP 45 High Precision Timer - Sadsilence - 09-20-2015, 06:44 PM
RE: HP 45 High Precision Timer - cruff - 09-20-2015, 09:48 PM
RE: HP 45 High Precision Timer - cruff - 09-21-2015, 05:58 PM
HP 45 Timer - Sadsilence - 10-13-2015, 02:48 PM
RE: HP 45 High Precision Timer - TASP - 10-14-2015, 02:37 AM
RE: HP 45 High Precision Timer - Sadsilence - 05-31-2017 08:07 PM



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