https://www.ahrdf.net/forum/ Sat, 23 May 2026 02:49:04 +0000 MyBB https://www.ahrdf.net/forum/showthread.php?tid=1446 Sun, 18 Aug 2024 03:13:22 +0000 VK4RW]]> https://www.ahrdf.net/forum/showthread.php?tid=1446
I have accumulated several Hardinge Bros (Harbros) HF AM radios.  These were Australian made in both Horsham and later Healesville both in VK3.

A large number of these valve radios were used by the Country Fire Authority prior to the introduction of VHF radios.

An article appeared in Silicon Chip (October 2005) authored by Rodney Champness (SK) on the restoration of a Harbros AM 12/54B transceiver. As luck would have it, it is now in my possession and performs flawlessly with a (wait for it) power output of 4.5 watts.

A basic circuit was included in the article, with little to no component values.  There was no information on the metering circuit, which is a plug in affair.

Does anyone have anyinformation on the above radio and associated power supply?  I dithered around with an old power supply I had here and managed to mate it to the radio.

While I'm here, is there any information around on the Harbros TA18/2?

Thank you for any information.


Ron
VK4RW/VK4BVI]]>
I have accumulated several Hardinge Bros (Harbros) HF AM radios.  These were Australian made in both Horsham and later Healesville both in VK3.

A large number of these valve radios were used by the Country Fire Authority prior to the introduction of VHF radios.

An article appeared in Silicon Chip (October 2005) authored by Rodney Champness (SK) on the restoration of a Harbros AM 12/54B transceiver. As luck would have it, it is now in my possession and performs flawlessly with a (wait for it) power output of 4.5 watts.

A basic circuit was included in the article, with little to no component values.  There was no information on the metering circuit, which is a plug in affair.

Does anyone have anyinformation on the above radio and associated power supply?  I dithered around with an old power supply I had here and managed to mate it to the radio.

While I'm here, is there any information around on the Harbros TA18/2?

Thank you for any information.


Ron
VK4RW/VK4BVI]]> https://www.ahrdf.net/forum/showthread.php?tid=1422 Thu, 30 May 2024 07:23:02 +0000 VK2TS]]> https://www.ahrdf.net/forum/showthread.php?tid=1422
A good amateur mate of mine is searching for a couple of new ICs to repair a TS940s. He needs 1 of each of the following: Mitsubishi MN6147C and MC14569

Any assistance is greatly appreciated.

Cheers
Tony
VK2TS]]>
A good amateur mate of mine is searching for a couple of new ICs to repair a TS940s. He needs 1 of each of the following: Mitsubishi MN6147C and MC14569

Any assistance is greatly appreciated.

Cheers
Tony
VK2TS]]> https://www.ahrdf.net/forum/showthread.php?tid=1414 Thu, 09 May 2024 23:44:11 +0000 ZL2WHO]]> https://www.ahrdf.net/forum/showthread.php?tid=1414 Looking for failed BLF188XR, BLF578 and the like that have failed on one side only, ie 1/2 the device is OK.
Have a top secret use for them.

Markken@xtra.co.nz

Cheers.]]> Looking for failed BLF188XR, BLF578 and the like that have failed on one side only, ie 1/2 the device is OK.
Have a top secret use for them.

Markken@xtra.co.nz

Cheers.]]> https://www.ahrdf.net/forum/showthread.php?tid=1355 Tue, 14 Nov 2023 05:34:38 +0000 VK4ADC]]> https://www.ahrdf.net/forum/showthread.php?tid=1355
Note that the destination is probably the 27C series where the original is a straight 2732 chip.   
As I have discovered by a search through my many "bits" boxes, I already have the chips and the UV eraser, just need the programmer - mine was outmoded many years ago when the ISA bus disappeared from computers..

Three alternatives :
Borrow to copy them
Visit to copy them (if in SE Qld)
Buy it if the price is right.. and no longer required by the existing owner.

If you can assist in one form or another, please respond.

Thanks
Doug


eg  GQ-4X Version 4 True USB Programmer  ???]]>
Note that the destination is probably the 27C series where the original is a straight 2732 chip.   
As I have discovered by a search through my many "bits" boxes, I already have the chips and the UV eraser, just need the programmer - mine was outmoded many years ago when the ISA bus disappeared from computers..

Three alternatives :
Borrow to copy them
Visit to copy them (if in SE Qld)
Buy it if the price is right.. and no longer required by the existing owner.

If you can assist in one form or another, please respond.

Thanks
Doug


eg  GQ-4X Version 4 True USB Programmer  ???]]> https://www.ahrdf.net/forum/showthread.php?tid=1257 Mon, 26 Dec 2022 01:41:04 +0000 VK8MS/3]]> https://www.ahrdf.net/forum/showthread.php?tid=1257           Im refurbishing my 6M2.5WL Yagi I rebuilt in Darwin a few years ago, I recently decided to put it back together since shipping down from Darwin and found or cant find the bags of Button Insulators and keepers, putting feelers out if anyone may have some of these they wish to sell, I require 11 of each.

Regards,
            Mark VK8MS / VK3IMS]]>           Im refurbishing my 6M2.5WL Yagi I rebuilt in Darwin a few years ago, I recently decided to put it back together since shipping down from Darwin and found or cant find the bags of Button Insulators and keepers, putting feelers out if anyone may have some of these they wish to sell, I require 11 of each.

Regards,
            Mark VK8MS / VK3IMS]]> https://www.ahrdf.net/forum/showthread.php?tid=1209 Sat, 02 Jul 2022 11:30:48 +0000 SWL-VK2023]]> https://www.ahrdf.net/forum/showthread.php?tid=1209 https://www.ahrdf.net/forum/showthread.php?tid=1069 Thu, 12 Aug 2021 06:43:07 +0000 VK2ZIW]]> https://www.ahrdf.net/forum/showthread.php?tid=1069 We have a Groips.io repository for Australian and New Zealand made two-way radios.
https://groups.io/g/AusLMRadio/

Can you all photograph whatever old units you have and scan in circuits please?

Some of us may want to modify them to our amateur bands and a circuit is most helpful.
Otherwise, it'll all be lost.]]> We have a Groips.io repository for Australian and New Zealand made two-way radios.
https://groups.io/g/AusLMRadio/

Can you all photograph whatever old units you have and scan in circuits please?

Some of us may want to modify them to our amateur bands and a circuit is most helpful.
Otherwise, it'll all be lost.]]> https://www.ahrdf.net/forum/showthread.php?tid=986 Thu, 03 Sep 2020 01:06:55 +0000 VK4ARC]]> https://www.ahrdf.net/forum/showthread.php?tid=986
I am looking for IC-718 parts radio or Main Unit board, or used equipment. The looks are not important. I am just trying to fix the radio I have.

Thanks and 73,
Rob
VK4ARC]]>
I am looking for IC-718 parts radio or Main Unit board, or used equipment. The looks are not important. I am just trying to fix the radio I have.

Thanks and 73,
Rob
VK4ARC]]> https://www.ahrdf.net/forum/showthread.php?tid=840 Wed, 24 Jul 2019 01:35:36 +0000 VK4WDM]]> https://www.ahrdf.net/forum/showthread.php?tid=840
The listed radios for the Anson are: T.1083, R.1082, A.1134, TR9F, AT5 and aerial coupling unit, AR8, T.1154, R.1155, AT.300, AR.301, plus mounting units, gene-motors, cables, Morse keys, microphones, trailing aerial components and handbooks. We are also looking for info on which of these radios were the most commonly used in Australian Ansons and any photos of the installations.

Radios don’t need to be working but reasonable to good cosmetic appearance would be an advantage.

Here is a chance take part in the preservation of Australia’s aviation history!          Please contact me in the first instance and I will put you in contact with restoration group.

Phone:  07 47 286 876.  Email: wayne.melrose2@bigpond.com

73

Wayne VK4WDM]]>
The listed radios for the Anson are: T.1083, R.1082, A.1134, TR9F, AT5 and aerial coupling unit, AR8, T.1154, R.1155, AT.300, AR.301, plus mounting units, gene-motors, cables, Morse keys, microphones, trailing aerial components and handbooks. We are also looking for info on which of these radios were the most commonly used in Australian Ansons and any photos of the installations.

Radios don’t need to be working but reasonable to good cosmetic appearance would be an advantage.

Here is a chance take part in the preservation of Australia’s aviation history!          Please contact me in the first instance and I will put you in contact with restoration group.

Phone:  07 47 286 876.  Email: wayne.melrose2@bigpond.com

73

Wayne VK4WDM]]> https://www.ahrdf.net/forum/showthread.php?tid=799 Thu, 23 May 2019 10:27:25 +0000 VK4RW]]> https://www.ahrdf.net/forum/showthread.php?tid=799
The model is KB 4.  There are no other markings, and it did not have a case.

I managed to wrangle some valves out of what appears to be the final stage, they are 5763 beam tetrodes.  Also in radio are a couple of hefty looking power transistors.  Another 8 valves are in the lineup, but I haven't taken the cans off to look at numbers.

The set is powered off 12v DC.


Any help is appreciated.


Ron
VK4BVI]]>
The model is KB 4.  There are no other markings, and it did not have a case.

I managed to wrangle some valves out of what appears to be the final stage, they are 5763 beam tetrodes.  Also in radio are a couple of hefty looking power transistors.  Another 8 valves are in the lineup, but I haven't taken the cans off to look at numbers.

The set is powered off 12v DC.


Any help is appreciated.


Ron
VK4BVI]]> https://www.ahrdf.net/forum/showthread.php?tid=715 Sun, 27 Jan 2019 06:25:44 +0000 VK5KAF]]> https://www.ahrdf.net/forum/showthread.php?tid=715 vk5kaf@gmail.com]]> vk5kaf@gmail.com]]> https://www.ahrdf.net/forum/showthread.php?tid=711 Mon, 21 Jan 2019 09:25:34 +0000 VK4RW]]> https://www.ahrdf.net/forum/showthread.php?tid=711
I am chasing some minor bits to finish the job.

Parts I am particularly interested in are the row of push button switches down the RHS of the remote namely -

V/M, Call, M/S and Sub switches.

Thanks for looking.

Cheers

Ron
VK4BVI]]>
I am chasing some minor bits to finish the job.

Parts I am particularly interested in are the row of push button switches down the RHS of the remote namely -

V/M, Call, M/S and Sub switches.

Thanks for looking.

Cheers

Ron
VK4BVI]]> https://www.ahrdf.net/forum/showthread.php?tid=678 Fri, 09 Nov 2018 22:56:33 +0000 VK3ALB]]> https://www.ahrdf.net/forum/showthread.php?tid=678
10GHz amplifier + 24GHz doubler boards (SU-02) from RF-Microwave.com

One would be nice, two would be better.]]>
10GHz amplifier + 24GHz doubler boards (SU-02) from RF-Microwave.com

One would be nice, two would be better.]]> https://www.ahrdf.net/forum/showthread.php?tid=675 Sat, 03 Nov 2018 06:16:37 +0000 VK5TM]]> https://www.ahrdf.net/forum/showthread.php?tid=675
Looking for 'Making Condensers' Pages 20 & 21 (for historical interest).

There is a pdf of the magazine on line, but of such bad quality as to be useless.

Thankyou.]]>
Looking for 'Making Condensers' Pages 20 & 21 (for historical interest).

There is a pdf of the magazine on line, but of such bad quality as to be useless.

Thankyou.]]> https://www.ahrdf.net/forum/showthread.php?tid=654 Mon, 01 Oct 2018 07:10:00 +0000 VK4WDM]]> https://www.ahrdf.net/forum/showthread.php?tid=654
73

Wayne VK4WDM]]>
73

Wayne VK4WDM]]>