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.
- Winston Churchill

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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
http://vk4ghz.com | VK4GHZ on Youtube
Image Waiting for the perfect 2/70/23 multi-mode SDR transceiver

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
http://vk4ghz.com | VK4GHZ on Youtube
Image Waiting for the perfect 2/70/23 multi-mode SDR transceiver

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VK4GHZ
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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.

10 PCBs were fabricated, and I'm keeping one more, so 8 PCBs are offered for sale on a cost recovery basis.

Alternatively, I can supply these controller boards with Nano and Nextion screen (you source your own Flatpack2 interface PCB) for a modest fee to cover time taken to order parts, assembly, programming x 2, test and handling. Please inquire privately if you are interested.

:D
Adam, Brisbane
http://vk4ghz.com | VK4GHZ on Youtube
Image Waiting for the perfect 2/70/23 multi-mode SDR transceiver

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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


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Cheers,
Peter
VK4EA

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