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Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members. |
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18th Jan 2022, 6:30 pm | #81 |
Nonode
Join Date: May 2007
Location: Redruth, Cornwall, UK.
Posts: 2,562
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
My kit arrived today. Look forward to building it when time permits. Thanks Peter.
Regards, Symon |
18th Jan 2022, 6:55 pm | #82 |
Octode
Join Date: Dec 2010
Location: St Ives, Cambridgeshire, UK.
Posts: 1,180
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Thanks Peter, a nice package in the post today.
Regards - Andrew
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Invisible airwaves crackle with life. Or they should do. BVWS Member |
18th Jan 2022, 7:23 pm | #83 |
Octode
Join Date: Aug 2006
Location: Stoke-on-Trent, Staffordshire, UK.
Posts: 1,082
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Thanks Pete
delighted to receive my unit today Well worth the money Trev |
18th Jan 2022, 10:04 pm | #84 |
Dekatron
Join Date: Nov 2011
Location: Surrey, UK.
Posts: 4,385
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Mine turned up today, too- very pleased and impressed, a great project for the near future!
Thanks, Colin |
18th Jan 2022, 10:27 pm | #85 |
Nonode
Join Date: Oct 2017
Location: Bristol, UK.
Posts: 2,358
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Hi Peter, mine's here too. Many thanks for such good work.
Jerry |
19th Jan 2022, 8:40 am | #86 |
Pentode
Join Date: Jan 2008
Location: Derby, Derbyshire, UK.
Posts: 107
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
I received my kit yesterday thanks. Is there a list of the additional components that I need to obtain?
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19th Jan 2022, 9:03 am | #87 |
Triode
Join Date: Nov 2021
Location: Leighton Buzzard, Bedfordshire, UK.
Posts: 32
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Hi Peter, the kit arrived yesterday, it looks great!
Thank you.
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John |
19th Jan 2022, 11:07 am | #88 | |
Octode
Join Date: Dec 2010
Location: St Ives, Cambridgeshire, UK.
Posts: 1,180
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Quote:
Andrew
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Invisible airwaves crackle with life. Or they should do. BVWS Member |
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19th Jan 2022, 1:42 pm | #89 | |
Pentode
Join Date: Jan 2008
Location: Derby, Derbyshire, UK.
Posts: 107
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Quote:
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19th Jan 2022, 3:00 pm | #90 |
Octode
Join Date: Sep 2017
Location: Bristol, UK.
Posts: 1,641
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Hi Peter
My kit arrived safely this morning. Excellent documentation included, and a superb quality PCB. Many thanks again for your generous and dedicated efforts on this project. Mike |
22nd Jan 2022, 5:45 pm | #91 |
Nonode
Join Date: Oct 2017
Location: Bristol, UK.
Posts: 2,358
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Hi folks, I've assembled my kit. It worked first time. It's only run up on the bench and I've been testing it on the scope. Haven't tried to wobbulate anything yet. The outputs all seem to be doing what they are supposed to. Here's the frequency ranges I'm getting on the counter:
1. 342-644 KHz 2. 1.0-2.1 MHz 3. 2.9-6.1 MHz 4. 5.2-16.9 MHz On Range 4 above about 10.4 MHz the frequency setting is unstable but I think this is because of the long wires to the range switch. Grabbing them together with my hand stabilises things so hopefully when I get it in the box I might be able to shorten them a bit and/or position them to avoid this problem. Cheers, Jerry |
22nd Jan 2022, 6:34 pm | #92 |
Nonode
Join Date: Jun 2016
Location: Bognor Regis, West Sussex, UK.
Posts: 2,287
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Thanks for the update Jerry, glad it works!
I think you are right about the switch wires. Peter |
26th Jan 2022, 11:43 pm | #93 |
Triode
Join Date: Apr 2018
Location: Northampton, Northamptonshire, UK.
Posts: 41
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
I would certainly be interested if a second batch comes into fruition. Sure, I have a commercial sweep generator but there is something inherently satisfying in using home builds.
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27th Jan 2022, 10:27 am | #94 |
Hexode
Join Date: Aug 2010
Location: nr. Hannover, Germany
Posts: 372
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
George,
it is for the same reason that I have asked for my name to be put down for a second batch if there should be one. I don't need one as I have several other options, but there is something satisfying in home build.
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Eddie BVWS Member. Friend of the BVWTM |
27th Jan 2022, 1:54 pm | #95 |
Nonode
Join Date: Jun 2016
Location: Bognor Regis, West Sussex, UK.
Posts: 2,287
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
There probably will be another batch, see post #76.
Peter |
28th Jan 2022, 11:37 am | #96 |
Heptode
Join Date: Sep 2018
Location: Twickenham, London, UK.
Posts: 536
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Hi Peter, just to let you know my kit arrived yesterday.
Thanks, Alan
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Alan G6PUB, BVWS |
31st Jan 2022, 11:09 pm | #97 |
Octode
Join Date: Dec 2010
Location: St Ives, Cambridgeshire, UK.
Posts: 1,180
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
I started building the wobbulator tonight and came across a small issue, R11, I can't see it on the circuit diagram! Could someone point out if it's just my eyes or is it missing and if so, what value?
Thanks - Andrew
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Invisible airwaves crackle with life. Or they should do. BVWS Member |
31st Jan 2022, 11:31 pm | #98 |
Pentode
Join Date: Feb 2005
Location: Longfield, Kent, UK.
Posts: 239
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Andrew
R11 is 1 megohm, and is connected to the junction of C7 (270pF) and the Gate of Q2, to Ground. It is missing from the schematic but is on the pcb. Mike
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Leave me alone - I know what I'm doing. BVWS member, EUG, G-QRP Radio Bygones/Radiophile |
31st Jan 2022, 11:41 pm | #99 |
Octode
Join Date: Dec 2010
Location: St Ives, Cambridgeshire, UK.
Posts: 1,180
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
Super thanks very much! Sometimes you can't see for staring and doubt yourself
Andrew
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Invisible airwaves crackle with life. Or they should do. BVWS Member |
1st Feb 2022, 2:15 pm | #100 |
Nonode
Join Date: Jun 2016
Location: Bognor Regis, West Sussex, UK.
Posts: 2,287
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Re: Haigh Wobbulator is there sufficient interest for a PCB?
I thought I had posted the schematic with the missing resistor but obviously I didn't.
Final Schematic attached. Sorry about that. Peter |