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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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22nd Dec 2017, 1:33 pm | #21 |
Triode
Join Date: Jun 2011
Location: Marlow, Buckinghamshire, UK.
Posts: 32
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Re: Using MMIC's
Hi Wendy,
which PCB software are you using in that picture as I am trying my hand at PCB making and seeing what other people use. Many Thanks Steve |
23rd Dec 2017, 1:02 am | #22 |
Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,782
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Re: Using MMIC's
Hi Steve. I use DIPTRACE Standard which now costs $395. 1000 pins 4 layers. It still seems to have bugs, and there is a newer version but it is EXPENSIVE. My favourite was PROTEL, but that disappeared ages ago.
There are free packages from RS and similar but I have not tried them.
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Should get out more. Regards Wendy G8BZY |
24th Dec 2017, 6:19 pm | #23 |
Octode
Join Date: Nov 2004
Location: Hebden Bridge, West Yorkshire, UK.
Posts: 1,885
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Re: Using MMIC's
I can recommend KiCad, it takes some getting used to but is free and well supported. D
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27th Dec 2017, 2:56 pm | #24 |
Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,782
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Re: Using MMIC's
Hi peeps...... Got bored with Xmas.. rejigged the MMIC amplifier. As the 2nd MAR 6 was limited in output voltage, I replaced with a Gali-84. This improved the output level to 2.12V RMS @ 100Mhz. into 50R.
Initially there was a little problem with the output level changing at higher levels, but two through earth points either side of the ground pin at the Gali 84 cured the problem. I had fitted a copper foil groundplane on the top side. The final amp now has a 7808 regulator to handle the 100m/A current of the Gali84 and the MAR-06... total current consumption 160m/A The original idea was to make an amp that I could "overdrive" the Switchable output filter of my SSB signal generator, as found there was some distortion on the 80 and 40 M bands. Without messing about too much with the diode switching, I decided to make a signal that will hopefully overload the filter to find out where the distortion is coming in. That is the next job.. Testing
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Should get out more. Regards Wendy G8BZY |
27th Dec 2017, 6:03 pm | #25 | |
Nonode
Join Date: Oct 2008
Location: Warsaw, Poland and Cambridge, UK
Posts: 2,669
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Re: Using MMIC's
Quote:
Chris
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What's going on in the workshop? http://martin-jones.com/ |
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27th Dec 2017, 8:55 pm | #26 |
Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,782
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Re: Using MMIC's
After I lost Protel, as it was DOS Based and then Tango also DOS based, even with adaptors to work via windows 7 I did not have the Laser Printer drivers, thus no good at all. So I finished up with Diptrace. which works for me.
Talk about Eyewatering.... you seen the price...........Sorry Protel. I will see you "on the other side" before I pay that.
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Should get out more. Regards Wendy G8BZY Last edited by Wendymott; 27th Dec 2017 at 9:00 pm. Reason: Additional info |