Wanted ovenised crystal module for Racal Dana 9916. - UK Vintage Radio Repair and Restoration Discussion Forum

g0hze snowy · 27th Nov 2020, 12:53 pm

Hi All
Has anybody got a 5mHz ovenised crystal module for Racal-Dana 9916 for sale.
condition and price posted to Peterborough Cambs please, ta, snowy g0hze

Pamphonica · 27th Nov 2020, 4:41 pm

Something like this? If so. PM me.
I've stuck 5V on it and it's giving a healthy 5MHz out, about 0.5V p-p, drawing about 100mA.
It's 2 ins cubed so is probably the Model 9442 ovened osc.
-Jeremy

g0hze snowy · 27th Nov 2020, 5:29 pm

Hi Jeremy, i have no idea what it looks like as i have just the standard 5mhz rock and trimmer in mine.
It looks like your one has to fit in a valve holder or something similar, so i don't know, the outputs appear to be fine.
i would pm you but i don't know how to.
Snowy

HamishBoxer · 27th Nov 2020, 5:33 pm

Just click on Pamphonica and send message.

factory · 27th Nov 2020, 7:45 pm

The manual lists a 9442 or 9421 as an optional crystal oven, with a note that the 9421 can't be used if the battery option is fitted, the standard frequency ref is a 11-1254 board.

David

MrBungle · 27th Nov 2020, 10:32 pm

I replaced a broken one in a 9915 with a modern one. See details here. Should be about the same level of effort:

https://www.eevblog.com/forum/testge...cal-9442-ocxo/

27th Nov 2020, 12:53 pm	#1
g0hze snowy Pentode Join Date: Oct 2013 Location: Peterborough, Cambridgeshire, UK. Posts: 131	Wanted ovenised crystal module for Racal Dana 9916. Hi All Has anybody got a 5mHz ovenised crystal module for Racal-Dana 9916 for sale. condition and price posted to Peterborough Cambs please, ta, snowy g0hze

27th Nov 2020, 4:41 pm	#2
Pamphonica Nonode Join Date: Mar 2008 Location: Virginia Water, Surrey, UK. Posts: 2,002	Re: Wanted ovenised crystal module for Racal Dana 9916. Something like this? If so. PM me. I've stuck 5V on it and it's giving a healthy 5MHz out, about 0.5V p-p, drawing about 100mA. It's 2 ins cubed so is probably the Model 9442 ovened osc. -Jeremy Attached Thumbnails __________________ Jeremy, G8MLK, BVWTVM Friend, VMARS, BVWS Secretary. www.pamphonic.co.uk Last edited by Pamphonica; 27th Nov 2020 at 5:08 pm.

27th Nov 2020, 5:29 pm	#3
g0hze snowy Pentode Join Date: Oct 2013 Location: Peterborough, Cambridgeshire, UK. Posts: 131	Re: Wanted ovenised crystal module for Racal Dana 9916. Hi Jeremy, i have no idea what it looks like as i have just the standard 5mhz rock and trimmer in mine. It looks like your one has to fit in a valve holder or something similar, so i don't know, the outputs appear to be fine. i would pm you but i don't know how to. Snowy

27th Nov 2020, 5:33 pm	#4
HamishBoxer Dekatron Join Date: Aug 2007 Location: W.Butterwick, near Doncaster UK. Posts: 7,728	Re: Wanted ovenised crystal module for Racal Dana 9916. Just click on Pamphonica and send message. __________________ G8JET BVWS Member and V.M.A.R.S

27th Nov 2020, 7:45 pm	#5
factory Heptode Join Date: Jul 2009 Location: Cheshire, UK. Posts: 727	Re: Wanted ovenised crystal module for Racal Dana 9916. The manual lists a 9442 or 9421 as an optional crystal oven, with a note that the 9421 can't be used if the battery option is fitted, the standard frequency ref is a 11-1254 board. David

27th Nov 2020, 10:32 pm	#6
MrBungle Dekatron Join Date: Jun 2016 Location: London, UK. Posts: 3,638	Re: Wanted ovenised crystal module for Racal Dana 9916. I replaced a broken one in a 9915 with a modern one. See details here. Should be about the same level of effort: https://www.eevblog.com/forum/testge...cal-9442-ocxo/