Looking for a 6V 4-pin vibrator and vibrator transformer for the Reception
Set R109.
Would appreciate any help or assistance to locate these items.

Theo

In article ,
Theo wrote:
Looking for a 6V 4-pin vibrator and vibrator transformer for the Reception
Set R109.
Would appreciate any help or assistance to locate these items.

I suggest trying one of the solid-state replacement vibrators.

As far as the vibrator transformer goes.... that will be more of an adventure.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

"Scott Dorsey" wrote in message
...
In article ,
Theo wrote:
Looking for a 6V 4-pin vibrator and vibrator transformer for the
Reception
Set R109.
Would appreciate any help or assistance to locate these items.

I suggest trying one of the solid-state replacement vibrators.

Thanks Scott - where would I get one of these?

On 3/13/08 6:03 AM, in article ,
"Theo" wrote:


"Scott Dorsey" wrote in message
...
In article ,
Theo wrote:
Looking for a 6V 4-pin vibrator and vibrator transformer for the
Reception
Set R109.
Would appreciate any help or assistance to locate these items.

I suggest trying one of the solid-state replacement vibrators.

Thanks Scott - where would I get one of these?



This isn't the pair of parts you're looking for:

http://www.vmarsmanuals.co.uk/newsle...s/vibrator.pdf

but you might find it useful.

Also, Google for "solid-state vibrator"

In article ,
Theo wrote:

"Scott Dorsey" wrote in message
...
In article ,
Theo wrote:
Looking for a 6V 4-pin vibrator and vibrator transformer for the
Reception
Set R109.
Would appreciate any help or assistance to locate these items.

I suggest trying one of the solid-state replacement vibrators.

Thanks Scott - where would I get one of these?

Antique Automotive Radio makes the things. Antique Electronics Supply
in Arizona stocks a bunch of them, but there are a lot of the weirder
ones that they don't stock. They do have the generic 6V 4-pin for both
positive and negative ground.

http://www.radiosforoldcars.com/
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

In article ,
"Theo" wrote:

Looking for a 6V 4-pin vibrator and vibrator transformer for the Reception
Set R109.
Would appreciate any help or assistance to locate these items.

Do you have the existing vibrator transformer?
It should be possible to rewind it if it's just an open circuit winding.

The vibrator is the same as used in the Wavemeter Class 'D'
Vibrator No.2 (ZA.27013 or Z730003), and the commercial
equivalents are Oak Type 6 or Mallory 650.

The vibrator transformer output is rated 160V at 10mA.

(This is all according to Wireless for the Warrior Volume 3.)

It occurs to me that the same transformer /might/ be used in other
equipment (I'm thinking Supply Unit Rectifier No.7 he 12V to 80-0-80
and a few other things, used to run teleprinters and carrier telephony
repeaters/ringers). I shall have to investigate this....

The Class 'D' Wavemeter transformer is probably much too small, but I'll
check that as well. (The only problem is that a lot of those units were
badly "hammed" and converted to AC mains operation by ripping out the
vibrator and its associated transformer, si finding a suitable donor
would be (a) difficult, and (b) a waste of a good Class 'D'.)

Chris.

--
"Java leads to shockwave.
Shockwave leads to realaudio.
And realaudio leads to suffering."
-- Jedi Master Peter da Silva

Hi Chris,
The R109 I have has a grossly modified power supply. The vibrator and
transformer have been ripped out and two 240v mains transformers fitted, one
delivering 6v and the other providing HT.
Fortunately the original HT rectifier is still there.
I have removed all the non-original power supply components. I have managed
to obtain a 4-pin vibrator socket.
I have an unused vibrator transformer for a Wavemeter Class D, it is marked
with a 6-0-6 volt primary and a 0 -140v secondary.
I wonder if this will work in the R109?

In article ,
"Theo" wrote:

Hi Chris,
The R109 I have has a grossly modified power supply. The vibrator and
transformer have been ripped out and two 240v mains transformers fitted, one
delivering 6v and the other providing HT.
Fortunately the original HT rectifier is still there.
I have removed all the non-original power supply components. I have managed
to obtain a 4-pin vibrator socket.
I have an unused vibrator transformer for a Wavemeter Class D, it is marked
with a 6-0-6 volt primary and a 0 -140v secondary.
I wonder if this will work in the R109?

It may be a little on the small side, since the Class 'D' only had a single
valve in it.

I can also discount the SUR No.7 - I forgot the mainsd input option, and
the transformer is *enormous* since it's got windings like this:

AC input

+10V 0V -10V 110V 140V 170V 200V 230V (to give 100 - 140V in 10V steps).

_or_

DC input

12V 0v 12V for vibrator switching. (Has a centre *and* an offset tap).

--------------------

DC output

-80V 0V +80V at 30mA for teleprinter magnets

AC output

40V at 40mA for AC ringing on carrier telephony equipment

DC output

12V at 40mA (probably a relay supply) This is actually quite
strange, because it's take of a *tapping* on the vibrator winding,
and there's a lampholder betweeen the centre-tap and the "12V"
takeoff point. I assume the "step up" is to compensate for the
losses in the selenium bridge rectifier used in this part of the
supply.

All in all, it's a strange beast.

----------------

Tomorrow I will dig out the complete Claas 'D' and the R109 that is
awaiting refurbishment, and compare the transformers. I may have
the appropriate EMER somewhere, which might have the transformer
winding details if I'm really lucky.

Chris.

--
And Jesus said unto them, "And whom do you say that I am?"
They replied, "You are the eschatological manifestation of the ground of
our being, the ontological foundation of the context of our very selfhood
revealed."
And Jesus replied, "What?"

Chris - many thanks for your information.
Whilst you have the covers off your R109,
would it be asking too much if you could take
a digital photo for me of the interior of the power supply layout, and send
it as an attachment in an email?
It would really help when I come to rebuild mine.



"Chris Suslowicz" wrote in message
...
In article ,
"Theo" wrote:

Hi Chris,
The R109 I have has a grossly modified power supply. The vibrator and
transformer have been ripped out and two 240v mains transformers fitted,
one
delivering 6v and the other providing HT.
Fortunately the original HT rectifier is still there.
I have removed all the non-original power supply components. I have
managed
to obtain a 4-pin vibrator socket.
I have an unused vibrator transformer for a Wavemeter Class D, it is
marked
with a 6-0-6 volt primary and a 0 -140v secondary.
I wonder if this will work in the R109?

It may be a little on the small side, since the Class 'D' only had a
single
valve in it.

I can also discount the SUR No.7 - I forgot the mainsd input option, and
the transformer is *enormous* since it's got windings like this:

AC input

+10V 0V -10V 110V 140V 170V 200V 230V (to give 100 - 140V in 10V steps).

_or_

DC input

12V 0v 12V for vibrator switching. (Has a centre *and* an offset tap).

--------------------

DC output

-80V 0V +80V at 30mA for teleprinter magnets

AC output

40V at 40mA for AC ringing on carrier telephony equipment

DC output

12V at 40mA (probably a relay supply) This is actually quite
strange, because it's take of a *tapping* on the vibrator winding,
and there's a lampholder betweeen the centre-tap and the "12V"
takeoff point. I assume the "step up" is to compensate for the
losses in the selenium bridge rectifier used in this part of the
supply.

All in all, it's a strange beast.

----------------

Tomorrow I will dig out the complete Claas 'D' and the R109 that is
awaiting refurbishment, and compare the transformers. I may have
the appropriate EMER somewhere, which might have the transformer
winding details if I'm really lucky.

Chris.

--
And Jesus said unto them, "And whom do you say that I am?"
They replied, "You are the eschatological manifestation of the ground of
our being, the ontological foundation of the context of our very selfhood
revealed."
And Jesus replied, "What?"

There are a few 6V vibrators for sale on QTH.COM, look
in the tubes, etc. That's a early cold war spy set, is that
correct? Outstanding performer on receive and transmit,
it will literally load into the proverbial wet noodle.
I have a complete set, but never did try to find the vibrator
for the empty socket.




On Wed, 12 Mar 2008 22:58:22 GMT, "Theo"
wrote:

Looking for a 6V 4-pin vibrator and vibrator transformer for the Reception
Set R109.
Would appreciate any help or assistance to locate these items.

Theo