[Milsurplus] PE-104-A Power Unit Vibrator Help

Bruce Gentry ka2ivy at verizon.net
Fri Feb 23 13:41:16 EST 2018


The VBX-1 modules come in two versions. One is for applications where 
the voltage on the transformer primary and the vibrator module is 
between 3 and 12 volts, the other is for 13-28 volts.  The original 
vibrator in the DY-88 is labeled 6 volt, and that can be deceiving when 
choosing the correct module to order.  It has a 6 volt coil and seperate 
interrupter contacts and pin connection, if the coil is powered with 6 
volts it will buzz whether there is voltage on the transformer primary 
contacts or not. The voltage  on the transformer primary contacts can be 
6, 12, or 24 volts depending on the voltage selection. The "VB" modules 
are powered by the voltage applied to the transformer primary, not by 
the 6 volts appled to the coil of the original, so you must choose the 
correct module based on the voltage the power supply will be operated 
on. If you want to be able to operate the DY-88 on 6/12/24 volts, you 
will need to get both models of modules,  build 2 vibrators, and be sure 
the correct one is plugged in for the voltage being used.

      Bruce Gentry, KA2IVY

On 2/23/18 11:54 AM, Carl Reinemann wrote:
> I saw the article and have a link to it 
> http://www.radionerds.com/index.php/File:Wire_VBN-1.pdf
>
> Here is the group out of Britain building replacements for various 
> pieces (not the SCR 284) https://www.royalsignals.org.uk/vibs/
>
> Is there someone willing to take a look to see how it could be done? I 
> just don't have the technical background to figure it out. Give me 
> instructions, and I can solder it up though.
>
> Carl
>
> On Thu, Feb 22, 2018 at 1:01 PM, Tom <noflood1 at sonic.net 
> <mailto:noflood1 at sonic.net>> wrote:
>
>       I'm also interested in how to wire the BC-654 Vibrator using
>     this VBx-1 module. I helped N7CAV do a story on using this same
>     module to modify the vibrator used in the  DY-88 power supply for
>     the GRC-9. The article with instructions was in Electric Radio
>     Magazine last year. Aside from the module two 1N5406 diodes are
>     added, I'm unsure how to do the same conversion on the BC-654
>     vibrator, a wiring diagram would be useful.
>
>
>      I bought my VBx-1 modules from
>
>     Bob's Radio & TV
>
>     1415 S. 4th St.
>     <https://maps.google.com/?q=1415+S.+4th+St.%0D+Oceano,+CA+93445&entry=gmail&source=g>
>
>     Oceano, CA 93445
>     <https://maps.google.com/?q=1415+S.+4th+St.%0D+Oceano,+CA+93445&entry=gmail&source=g>
>
>     805-489-8200 <tel:%28805%29%20489-8200>
>
>           They have a website.
>
>                                                            Tom, W6TOM
>
>
>     On 2018-02-22 09:43, Rob Lee wrote:
>
>>     Carl,
>>     The TBX power supply also has a 6 pin synchronous vibrator along
>>     with a 4 pin. I haven't reached the point of wiring it up. The
>>     synchronous vibrator is addressed in the VBx-1 Connections
>>     paragraph in the document previously sent. Attached is an
>>     additional document referencing the two diodes used in
>>     conjunction to replace a synchronous vibrator. See the lower
>>     right corner of the diagram.
>>     I believe the Aurora Design VBx-1 Electronic Vibrator is only
>>     available via dealers. I purchased a couple from a local radio
>>     repair shop that specializes in vintage car radios.
>>     Bill Newman
>>     301 E Wallace Kneeland Blvd
>>     <https://maps.google.com/?q=301+E+Wallace+Kneeland+Blvd%0D+Suite+224&entry=gmail&source=g>
>>     Suite 224
>>     <https://maps.google.com/?q=301+E+Wallace+Kneeland+Blvd%0D+Suite+224&entry=gmail&source=g>-229
>>     Shelton WA 98584
>>     360 427-0513 <tel:%28360%29%20427-0513>
>>     bill at billtheradioguy.com <mailto:bill at billtheradioguy.com>
>>     Let me know if you are able to dig up any additional reference
>>     material.
>>     Rob
>>
>>         ----- Original Message -----
>>         *From:* Carl Reinemann <mailto:creinemann at gmail.com>
>>         *To:* milsurplus at mailman.qth.net
>>         <mailto:milsurplus at mailman.qth.net>
>>         *Sent:* Thursday, February 22, 2018 7:44 AM
>>         *Subject:* Re: [Milsurplus] PE-104-A Power Unit Vibrator Help
>>         Thanks, Rob,
>>         Where did you order your modules from? Here is the schematic
>>         for the PE-104-A.  I am clear on the mechanics of taking the
>>         vibrator apart, and reconfiguring the existing unit, but I am
>>         not clear on the actual wiring up of the new modules to this
>>         kind of vibrator as it has 6 pins, whereas the examples I
>>         have seen are seven or four pin units.
>>         Carl
>>
>>         On Wed, Feb 21, 2018 at 10:48 PM, Rob Lee <rob at k7tgu.com
>>         <mailto:rob at k7tgu.com>> wrote:
>>
>>             Carl,
>>             Attached is the spec sheet I have. Not sure if it will be
>>             any help. Ordered a couple of these for use in a TBX 12V
>>             power supply, but haven't gotten back to the project.
>>             Will dig a little deeper to see if I have additional
>>             documentation.
>>             Rob
>>
>>                 ----- Original Message -----
>>                 *From:* Carl Reinemann <mailto:creinemann at gmail.com>
>>                 *To:* milsurplus at mailman.qth.net
>>                 <mailto:milsurplus at mailman.qth.net>
>>                 *Sent:* Wednesday, February 21, 2018 5:15 PM
>>                 *Subject:* [Milsurplus] PE-104-A Power Unit Vibrator Help
>>                 Has anyone converted a Radiart VS-3 Vibrator used in
>>                 the PE-104-A Power Unit of  BC-654 Radio set to solid
>>                 state using the VBN module?
>>                 I have been following this thread on the G503.com
>>                 site
>>                 http://forums.g503.com/viewtopic.php?f=36&t=205860&p=1708669#p1708669
>>                 <http://forums.g503.com/viewtopic.php?f=36&t=205860&p=1708669#p1708669>
>>                 My SCR-284 is working (for now) but I would like to
>>                 convert that vibrator to solid state if any one could
>>                 help with a wiring diagram.
>>                 Carl
>>
>>
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