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Vintage OCXO Unitra
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Topic: Vintage OCXO Unitra (Read 5278 times)
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vasi_ro
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Posts: 35
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Vintage OCXO Unitra
«
on:
March 21, 2016, 08:53:13 pm »
A quick teardown of an OCXO made in Poland by Unitra in 1986. This oscillator was use in many counters made in Romania and Poland. I have 2 counters that use this model and both are spot on after so many years.
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Vgkid
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Re: Vintage OCXO Unitra
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Reply #1 on:
March 23, 2016, 05:11:41 am »
Can you re upload the pics, only 2 load.
almost everything is a red-orange.
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If you own any North Hills Electronics gear, message me. L&N Fan
DimitriP
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"Best practices" are best not practiced.© Dimitri
Re: Vintage OCXO Unitra
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Reply #2 on:
March 23, 2016, 09:07:20 am »
«
Last Edit: March 23, 2016, 09:12:07 am by DimitriP
»
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If three 100 Ohm resistors are connected in parallel, and in series with a 200 Ohm resistor, how many resistors do you have?
tszaboo
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Current job: ATEX product design
Re: Vintage OCXO Unitra
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Reply #3 on:
March 23, 2016, 10:01:08 am »
That isnt any better.
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DimitriP
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"Best practices" are best not practiced.© Dimitri
Re: Vintage OCXO Unitra
«
Reply #4 on:
March 23, 2016, 10:13:11 am »
My post displays the pics on Firefox, chrome,Vivaldi and Explorer... now it's your turn.
Not sure what you are running, so I can't tell you the correct number of chickens to sacrifice in order to fix it
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If three 100 Ohm resistors are connected in parallel, and in series with a 200 Ohm resistor, how many resistors do you have?
vasi_ro
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Re: Vintage OCXO Unitra
«
Reply #5 on:
March 23, 2016, 10:53:24 am »
My browser ( firefox ) display the pics with no problem. I can reupload but tell me which image host site to use. Now the pics are on postimg.org.
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vasi_ro
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Re: Vintage OCXO Unitra
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Reply #6 on:
March 23, 2016, 01:47:10 pm »
Uploaded directly on forum. I hope everyone can see the pictures now
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vasi_ro
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Re: Vintage OCXO Unitra
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Reply #7 on:
March 23, 2016, 02:30:26 pm »
I don't know why the sine wave is flat. And yes it's a tunnel diode.
A also found the service manual for a similar model.
http://delibra.bg.polsl.pl/Content/15659/Generator_GWM5_
!.pdf
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vasi_ro
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Re: Vintage OCXO Unitra
«
Reply #8 on:
March 23, 2016, 02:45:08 pm »
try this one :
http://bee.mif.pg.gda.pl/ciasteczkowypotwor/Polskie%20mierniki/zopan%20pfl-20/GWM-5-1/GWM_5_1/
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