[MRCA] MRCA, ZB Pilots Control Box

Mon Feb 7 21:47:16 EST 2022

I have some, ZB  Pilots control Box’s, CW-23214,  I also have some ZB, converters and RU-16,17,18,19  Receivers, controls etc. 73, Wild Bill, K0IKP

> On Feb 5, 2022, at 12:07 AM, mrca-request at mailman.qth.net wrote:
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> Today's Topics:
> 
>   1. Pilot?s control box for ARB receiver (MARK DORNEY)
>   2. ZB Homing Adapter Question (MARK DORNEY)
>   3. Re: ZB Homing Adapter Question (Michael Hanz)
>   4. Re: ZB Homing Adapter Question (Robert Downs)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 4 Feb 2022 17:41:57 -0500
> From: MARK DORNEY <mkdorney at aol.com>
> To: mrca at mailman.qth.net, David Stinson <arc5 at ix.netcom.com>
> Subject: [MRCA] Pilot?s control box for ARB receiver
> Message-ID: <660216F7-C35A-4751-92C2-DFF768291E00 at aol.com>
> Content-Type: text/plain; charset=utf-8
> 
> Looking for the Pilot?s Control Box for an ARB receiver to go on display at a military aviation museum. This is the last major component needed for a display of a WW2 era navigational radio a single seat aircraft equipped with a ZB-2 homing adapter. Any help is appreciated. 
> 
> Mark D. 
> WW2RDO 
> 
> ?In matters of style, float with the current. In matters of Principle, stand like a rock. ?.   -   Thomas Jefferson 
> 
> Sent from my iPhone
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Fri, 4 Feb 2022 20:42:49 -0500
> From: MARK DORNEY <mkdorney at aol.com>
> To: mrca at mailman.qth.net
> Subject: [MRCA] ZB Homing Adapter Question
> Message-ID: <B0E8B44F-48FC-4CF0-BDF5-42ABB25C3575 at aol.com>
> Content-Type: text/plain; charset=utf-8
> 
> I just got a ZB-2 homing adapter for the ARB radio. It has a plate riveted on the side of it that says ? For 12 Volt Operation?. The question is -is there some kind of voltage reducer that connects between the ARB receiver and the ZB adapter, or a change to internal wiring in the ZB-2 or ARB ?  The data plate on the ZB says 12 or 28 volt operation, so I?m thinking there is some sort of wiring change in the ZB adapter to account for the 12 volts. The contract date for both the ZB and the ARB is in 1942, so I?m thinking that the ZB operational voltage was somehow changed, since standard Navy aircraft voltages by 1942 were pretty much changed from 12 to 28 volt on new aircraft. The arb is marked for 28 volt operation   
> 
> 73
> Mark D. 
> WW2RDO
> 
> ?In matters of style, float with the current. In matters of Principle, stand like a rock. ?.   -   Thomas Jefferson 
> 
> Sent from my iPhone
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Fri, 4 Feb 2022 22:18:44 -0500
> From: Michael Hanz <aaf-radio-1 at aafradio.org>
> To: MARK DORNEY <mkdorney at aol.com>, mrca at mailman.qth.net
> Subject: Re: [MRCA] ZB Homing Adapter Question
> Message-ID: <9046931c-2e3b-21cb-a9a2-ad70a3f45da5 at aafradio.org>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
> See https://aafradio.org/docs/ARR-1.html on my website.? The 14v versus 
> 28v changes are shown in the circuit diagram at the end. They are the 
> same for ZB-2 or ZB-3.
> 
> - Mike? KC4TOS
> 
> On 2/4/2022 8:42 PM, MARK DORNEY via MRCA wrote:
>> I just got a ZB-2 homing adapter for the ARB radio. It has a plate riveted on the side of it that says ? For 12 Volt Operation?. The question is -is there some kind of voltage reducer that connects between the ARB receiver and the ZB adapter, or a change to internal wiring in the ZB-2 or ARB ?  The data plate on the ZB says 12 or 28 volt operation, so I?m thinking there is some sort of wiring change in the ZB adapter to account for the 12 volts. The contract date for both the ZB and the ARB is in 1942, so I?m thinking that the ZB operational voltage was somehow changed, since standard Navy aircraft voltages by 1942 were pretty much changed from 12 to 28 volt on new aircraft. The arb is marked for 28 volt operation
>> 
>> 73
>> Mark D.
>> WW2RDO
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Sat, 5 Feb 2022 01:06:31 -0600
> From: "Robert Downs" <wa5cab at cs.com>
> To: "'MARK DORNEY'" <mkdorney at aol.com>
> Cc: 'Military Radio Collectors Association' <mrca at mailman.qth.net>
> Subject: Re: [MRCA] ZB Homing Adapter Question
> Message-ID: <015101d81a5e$e7d71470$b7853d50$@com>
> Content-Type: text/plain;	charset="utf-8"
> 
> NO.  The only things affected by the primary supply voltage in the ZB are the tube filaments. There is a DPDT toggle switch in the converter that selects 12V or 24V for the four 6V filaments. If you remove the tag and flip it over, it may say "For 24 Volt Operation?.  At least that would have be the cheapest solution.
> 
> Robert Downs
> 
> 
> -----Original Message-----
> From: mrca-bounces at mailman.qth.net [mailto:mrca-bounces at mailman.qth.net] On Behalf Of MARK DORNEY via MRCA
> Sent: Friday, February 4, 2022 19:43
> To: mrca at mailman.qth.net
> Subject: [MRCA] ZB Homing Adapter Question
> 
> I just got a ZB-2 homing adapter for the ARB radio. It has a plate riveted on the side of it that says ? For 12 Volt Operation?. The question is -is there some kind of voltage reducer that connects between the ARB receiver and the ZB adapter, or a change to internal wiring in the ZB-2 or ARB ?  The data plate on the ZB says 12 or 28 volt operation, so I?m thinking there is some sort of wiring change in the ZB adapter to account for the 12 volts. The contract date for both the ZB and the ARB is in 1942, so I?m thinking that the ZB operational voltage was somehow changed, since standard Navy aircraft voltages by 1942 were pretty much changed from 12 to 28 volt on new aircraft. The arb is marked for 28 volt operation   
> 
> 73
> Mark D. 
> WW2RDO
> 
> ?In matters of style, float with the current. In matters of Principle, stand like a rock. ?.   -   Thomas Jefferson 
> 
> Sent from my iPhone
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> End of MRCA Digest, Vol 214, Issue 3
> ************************************