What's on your Workbench?

General discussion - When it doesn't fit anywhere else
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VK5PJ
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Re: What's on your Workbench?

Post by VK5PJ » Fri May 31, 2019 11:58 am

Hi Hayden,
if you think the Eltech is loud, try one of the HP 3KW PSU's that were popular for powering LDMOS amps (I have two PSU's here) they are LOUD all of the time, so have recently changed to using the eltech units and now I can actually hear the dog when it barks. :D
VK7HH wrote:
Mon May 27, 2019 4:28 pm
Very good video Adam. The power supply sounds like it's about to take off down a runway when it's powered up with that fan though :thumbup:
Peter Sumner, vk5pj
You have enemies? Good. That means you've stood up for something, sometime in your life.
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VK4GHZ
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Re: What's on your Workbench?

Post by VK4GHZ » Thu Jun 27, 2019 1:23 pm

The joys of working with SMD!
This is a TSOP6 package (2.9 x 1.3mm) with a lead pitch of 0.85mm.

20190627_1200.jpg
New hardware addition to the SEQ-9700 sequencer production prototype... about to be mounted dead bug style for evaluation.

12x diopter maggy lamp lens and extra strong reading glasses at the ready! :crazy:
Adam, Brisbane
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VK1JA
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Re: What's on your Workbench?

Post by VK1JA » Thu Jun 27, 2019 7:46 pm

Holly molly they are small.

I find keeping away from coffee for the day keeps the hand nice and steady too :lol:

I didn't realise that you were hand assembling them, Adam!

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VK4GHZ
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Re: What's on your Workbench?

Post by VK4GHZ » Thu Jul 11, 2019 2:07 pm

Adam, Brisbane
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Re: What's on your Workbench?

Post by VK4GHZ » Thu Jul 25, 2019 2:10 pm

Back one page I posted images of a 3D render of an Eltek Flatpack2 controller project PCB.

The PCBs arrived from the fabricator weeks ago, and I've (finally!) managed to find some time to assemble a controller board.

Image

More images and details at: http://vk4ghz.com/eltek-flatpack2-touch ... ontroller/
(scroll down for the update)

This controller allows monitoring of the parameters that Flatpack2 provides via it's CAN-bus:
• AC Volts in
• DC Volts out
• Load current
• Intake temperature
• Output temperature
• Operating status
• and any alarm/warning messages it generates

A touch screen makes it easy to set the "default voltage", change the foreground and background colours and font of each parameter via the "SET" menus. Some Icom terminology there. :wink:

Current (as in 'now') voltage can also be shifted up or down in 100mV steps via the up/down buttons.

Screen brightness is adjustable and there is a screen saver (1-999 minutes), or no screen saver.
Adam, Brisbane
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10 things that happen when you stop checking Facebook constantly: http://tiny.cc/t5h7cz

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VK4EA
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Re: What's on your Workbench?

Post by VK4EA » Thu Aug 01, 2019 12:25 pm

New arrival - really affordable signal generator up to 6.4 GHz.

Image

Image

I’d recommend keeping an eye on Crowdsupply http://www.crowdsupply.com


Sent from my iPhone using Tapatalk
Cheers,
Peter
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Re: What's on your Workbench?

Post by F6ITU » Tue Aug 20, 2019 2:43 am

@Adam vk4ghz
Just a simple stupid question : is your Eltek Flatpack control board for Aussie market only ? I tried to follow the shop's procedure but the form kicked me out for a "bad or missing address" reason

Cheers
Marc f6itu

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VK4GHZ
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Re: What's on your Workbench?

Post by VK4GHZ » Tue Aug 20, 2019 10:09 am

F6ITU wrote:
Tue Aug 20, 2019 2:43 am
@Adam vk4ghz
Just a simple stupid question : is your Eltek Flatpack control board for Aussie market only ? I tried to follow the shop's procedure but the form kicked me out for a "bad or missing address" reason

Cheers
Marc f6itu
Nobody should be ordering anything - it's not even set up properly yet.
Only started installing it last night, and I cannot get the shipping cost working properly.
Adam, Brisbane
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Re: What's on your Workbench?

Post by F6ITU » Tue Aug 20, 2019 3:31 pm

Thanks for the reply, Adam

I'll wait and keep an eye on the forum.

Back to my workbench now (stuggling with large BGA's to solder right now)
VY 73
Marc f6itu

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Re: What's on your Workbench?

Post by VK4GHZ » Wed Aug 28, 2019 9:18 pm

More SMD fun and games.
This time a USB transceiver chip in a SSOP16 package with a pin pitch of 0.65mm.
20190828_202908_900.jpg

Hallelujah for break out boards with 0.1" pitch so these SMD parts become breadboard friendly.

20190828_205923_900.jpg
Not too shabby. :shock:
Adam, Brisbane
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Re: What's on your Workbench?

Post by VK3ALB » Mon Nov 11, 2019 6:09 pm

MiniKits 1296 transverter kit.

These days I have too much work, not enough play (mustn't grumble) but I enjoyed putting this together. Multipliers go together in less than an hour and tune up easily. The transverter board takes a good 4 to 5 hours to assemble. My old man eyes and illuminated magnifier are just keeping up. The SAW filters and MGA-86563 are a challenge but did go in the right spot first time.

Plug the rig in and away it went, +20dBm TX and RX sensitivity seems good. Too much leakage from the signal source to really tell.

20191111_175404.png
Lou - VK3ALB

I'll decide how I enjoy my hobby.

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