What's on your Workbench?

General discussion - When it doesn't fit anywhere else
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VK4EA
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Re: What's on your Workbench?

Post by VK4EA » Mon Apr 22, 2013 2:25 pm

W6PQL 23cm amplifier, getting closer. Need more cans with 4 x VK2 ham signatures on them :D
whatsonmybench.JPG
Not so s**t beer
Plenty of other projects queued up :x
Cheers,
Peter
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VK3DU
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Re: What's on your Workbench?

Post by VK3DU » Tue Apr 23, 2013 4:44 pm

Roger VK2ZRH, FB re the homebrew receiver. Did you get any assistance from the late Harry Roach re the build? I think you were very active in the WIA SWL Group in those days.

73 Peter VK3DU (WIA-L3215).

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Re: What's on your Workbench?

Post by VK2ZRH » Tue Apr 23, 2013 5:41 pm

Hi Peter,

I remember Harry ! I don't recall getting any direct assistance, other than him suggesting various articles I should find and read (there was one IIRC titled "The Like New Mixer", which appeared in AR magazine). There were others who made suggestions, too.

73, Roger Harrison VK2ZRH

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Re: What's on your Workbench?

Post by VK3ALB » Sat May 04, 2013 8:14 am

A 7GHz PA I want to bring down to 5.7GHz.
Siemens PA output.jpg
Lou - VK3ALB

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Re: What's on your Workbench?

Post by VK4GHZ » Fri Jun 07, 2013 3:56 pm

Adam, Brisbane
http://vk4ghz.com | VK4GHZ on Youtube

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Re: What's on your Workbench?

Post by VK3MJC » Mon Jun 10, 2013 9:51 pm

VK2CSW wrote: Currently on my bench is a rather stubborn early 1950's Sportco Clubmaster Martini with extraction problems.

(Nobody explicitly defined which workbench...)
I'm glad someone else noted that..

I've got a Warn XD9000 low mount electric winch in bits for a rebuild, and about 50 neoprene stubby holders waiting for me to build a new stubby holder holder.. :oops:

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Re: What's on your Workbench?

Post by VK3YE » Mon Jun 10, 2013 11:00 pm

Below is what may become an 80m phasing rig inspired by http://sklep.avt.pl/photo/_pdf/avt2906.pdf
phas.jpg
sp5aht phasing ssb
-------------------------
Peter VK3YE http://www.vk3ye.com

NEW FOR 2019! Illustrated International Ham Radio Dictionary. 200 page Kindle ebook. $AU $5.99. Get yours at http://home.alphalink.com.au/~parkerp/dictionary.htm

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Re: What's on your Workbench?

Post by VK2AMS » Tue Jun 11, 2013 5:30 am

[img]C:\Documents%20and%20Settings\Compaq_Owner\My%20Documents[/img]found an interesting circuits(s) about modulating a laser , didnt take long to design and make a couple of circuit boards and I had a laser pointer spare , used a photo transistor $6 from jaycar .it works well now to try and see what distance I can get ! good fun :D cheers mark VK2AMS

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Re: What's on your Workbench?

Post by VK4KL » Thu Jun 13, 2013 10:10 pm

Gave up on the FC757AT so now I have 2 Arduino projects going.
1 Sweeper antenna analyser waiting on DDS to arrive
2 Arduino cw keyer ready to setup on 6 meters beacon

Adrian
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Re: What's on your Workbench?

Post by VK5ZD » Thu Jun 13, 2013 11:11 pm

Home-brew GPSDO.
Trimble Resolution-T receiver.
Isotemp OCXO
Picaxe 40X2
Software version 4,978,765 :shock: (well, not quite, but it seems like it :lol: ).
2013-06-13 22.28.19.jpg
73
Iain
73
Iain Crawford - VK5ZD
Munno Para West, SA - PF95ih

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Re: What's on your Workbench?

Post by VK/9V1CJ » Thu Jun 13, 2013 11:14 pm

If only I had 1/4 the space you had. This was my "work bench".

Image
Operating portable UHF only and limited to 4W due to equipment. Off HF, experimenting with optimum antenna placement in an urban environment (aka, Brisbane CBD).

9V1CJ - Singapore, Singapore
VK4XCJ - Queensland, Australia

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Re: What's on your Workbench?

Post by VK5TM » Sat Jun 15, 2013 5:15 pm

Hello All, recently new to the forums.

Working on an amp with ALC for my DDS project.

Using LMH6703 ic's for the amp. Just need to finalise the control element for the ALC section.
Sent from my PC using my fingers.
Terry VK5TM
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Re: What's on your Workbench?

Post by VK4KL » Thu Jul 04, 2013 5:10 pm

Just took delivery of 2 cheap Chinese DDS40 synthesizers.
So far have an Arduino 7-7.5 MHz VFO on the bench.

Adrian
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Re: What's on your Workbench?

Post by VK4LHD » Fri Jul 05, 2013 10:10 am

This is what's on my work bench at the moment.
Slowly but surely coming together is the VK3XDK 2.4Ghz Transverter.
This is my first venture into microwave apart from using 23cm. It may not be up and running by the 28th July for the Microwave Activity Day ( MAD ) but should be working by Nov for the Spring VHF/UHF Field day or at least that's the plan. I been getting a lot of useful info from the forum. My future plan is to have both 2.4Ghz and 5.7Ghz in the same box by late 2014. It's a very steep learning curve for me so stay tuned on the forum for a lot of dumb questions from me. I am very badly hearing impaired now so I want to give microwave a go before it's too late. The 10Mhz OCXO arrived while I was doing this post so that will be the next bit to set up.
Attachments
P7050871mod.jpg
Front panel of the box. Setting it up so I can use my Heil Headset as some of you may know I'm badly hearing impaired.
P7050872mod.jpg
The box is a little empty at the moment with a few parts still on the way. Plenty of room for the future expansion with 5.7Ghz.

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Re: What's on your Workbench?

Post by 9Q1EK » Sun Jul 07, 2013 9:10 am

Hi Friends, couple of small things on my bench.
73 Georges VE2EK - 9Q1EK - ZS1II
http://ve2ek-9q1ek.blogspot.com/
73 Georges
VE2EK - 9Q1EK - ZS1II
http://ve2ek-9q1ek.blogspot.com/

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Re: What's on your Workbench?

Post by VK4KL » Thu Jul 11, 2013 2:55 pm

My working 1 - 30 MHz VFO in selectable frequency steps. Its the AD7C VFO with a couple of modifications to suit the encoder I had.
Consists of an Arduino Uno a $4 AD9850 DDS. Works very well but the output is slightly low at bottom and top of its frequency range.
Good output from 5.5 MHz to 27 MHz. But all in all happy with performance.
Attachments
vfo.JPG
Adrian
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Re: What's on your Workbench?

Post by VK3YE » Sat Aug 17, 2013 12:17 am

Time to revive this thread....

Demo of my second 80m phasing SSB receiver. Just 3 transistors & 1 IC.

And yes it successfullly nulls the opposite sideband.



-------------------------
Peter VK3YE http://www.vk3ye.com

NEW FOR 2019! Illustrated International Ham Radio Dictionary. 200 page Kindle ebook. $AU $5.99. Get yours at http://home.alphalink.com.au/~parkerp/dictionary.htm

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Re: What's on your Workbench?

Post by 9Q1EK » Sun Aug 25, 2013 2:34 am

Dummy load 50 ohms with RF Termination.
After the holidays and full stock of spare parts, I am come back in the 9Q land with the construction.
Image
73's Georges ZS1II
http://ve2ek-9q1ek.blogspot.com/
73 Georges
VE2EK - 9Q1EK - ZS1II
http://ve2ek-9q1ek.blogspot.com/

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Re: What's on your Workbench?

Post by VK5ZD » Wed Aug 28, 2013 6:12 pm

Fresh from the workbench is a lightweight 10GHz portable system. This is a repackaging of a transverter I already had (VK3XDK version) into a box built behind a panel antenna and mounted on a camera tripod.
IMGP6318.JPG
Inside view.
IMGP6326.JPG
Outside rear - Note the FT817 I.F. radio.
IMGP6331.JPG
Outside front.
73
Iain Crawford - VK5ZD
Munno Para West, SA - PF95ih

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Re: What's on your Workbench?

Post by VK5TX » Wed Aug 28, 2013 6:57 pm

There is an idea for my 10ghz setup. eBay here I came for a antenna.

Ben

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