Where to get blob board?

P

Phil Hobbs

Guest
I need to replenish my supply of blob board (see e.g.
<http://electrooptical.net/www/sed/photoreceiver.jpg>).

I used to get them from a guy on eBay who called himself BoardWorx, but
he isn't there anymore.

I could lay out some of my own, but I'd rather buy them.

Any suggestions?

Thanks

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
fredag den 13. september 2019 kl. 17.31.42 UTC+2 skrev Phil Hobbs:
I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).

I used to get them from a guy on eBay who called himself BoardWorx, but
he isn't there anymore.

I could lay out some of my own, but I'd rather buy them.
Click to expand...

it'll probably take 10 minutes to layout and JLPCB will do 5pcs 100x100mm boards for $2
 
Everybody's a critic.

That's a 12-GHz pHEMT cascoded by a 45-GHz SiGe:C NPN. Size matters.

The visible circuitry is all biasing and stuff.

Cheers

Phil Hobbs
 
On Fri, 13 Sep 2019 11:31:30 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).

I used to get them from a guy on eBay who called himself BoardWorx, but
he isn't there anymore.

I could lay out some of my own, but I'd rather buy them.

Any suggestions?

Thanks

Phil Hobbs
Click to expand...

Bellin?

But I agree with Win, you should be sent to breadboard boot camp.
 
Phil Hobbs wrote...
I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).
Click to expand...

Maybe he saw your picture? and decided to
just give up on the whole thing!


--
Thanks,
- Win
 
On 9/13/19 12:27 PM, pcdhobbs@gmail.com wrote:
Everybody's a critic.

That's a 12-GHz pHEMT cascoded by a 45-GHz SiGe:C NPN. Size matters.

The visible circuitry is all biasing and stuff.

Cheers

Phil Hobbs
Click to expand...

I've seen a number of very pretty-built prototypes (maybe even built a
few myself) that don't work worth a damn because current cares about
loop area not winning the beauty pageant!!!
 
On Friday, September 13, 2019 at 12:27:42 PM UTC-4, pcdh...@gmail.com wrote:
Everybody's a critic.

That's a 12-GHz pHEMT cascoded by a 45-GHz SiGe:C NPN. Size matters.

The visible circuitry is all biasing and stuff.
Click to expand...

Someone I worked with used to refer to these as 3D RF structures, mostly because he could have used them as a Theremin.

--

Rick C.

- Get 2,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209
 
jlarkin@highlandsniptechnology.com wrote...
But I agree with Win, you should be sent to
breadboard boot camp.
Click to expand...

Haha, I'm sure Phil can show us nice SMT examples.

But I'm wondering about good pad size / spacing
for SMT projects. 0.65mm pads with 0.95mm spacing
handles SOT-23, but we also need 0.5mm spacing.


--
Thanks,
- Win
 
Take your pick:
https://www.digikey.com/short/pfzhp1
Although a lot of them are non-stock so you'll have to wait a bit for the
finer pitched kind, by the looks of it. I'm sure there are better sources.
Adafruit or Sparkfun may stock them?

Tim

--
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Design
Website: https://www.seventransistorlabs.com/

"Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:ALedneZkx_DOK-bAnZ2dnUU7-bnNnZ2d@supernews.com...
I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).

I used to get them from a guy on eBay who called himself BoardWorx, but he
isn't there anymore.

I could lay out some of my own, but I'd rather buy them.

Any suggestions?

Thanks

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
Click to expand...
 
On 9/13/19 2:37 PM, Tim Williams wrote:
Take your pick:
https://www.digikey.com/short/pfzhp1
Although a lot of them are non-stock so you'll have to wait a bit for
the finer pitched kind, by the looks of it.  I'm sure there are better
sources. Adafruit or Sparkfun may stock them?

Tim
Click to expand...

The only ones in stock are 0.1 inch pitch.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net
 
On 9/13/19 12:45 PM, Winfield Hill wrote:
jlarkin@highlandsniptechnology.com wrote...

But I agree with Win, you should be sent to
breadboard boot camp.

Haha, I'm sure Phil can show us nice SMT examples.

But I'm wondering about good pad size / spacing
for SMT projects. 0.65mm pads with 0.95mm spacing
handles SOT-23, but we also need 0.5mm spacing.
Click to expand...

The stuff I've been using is 0.5 x 0.65 mm, which works pretty well.

<http://www.boardworxsystem.com/index_files/Page540.htm>

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net
 
On Fri, 13 Sep 2019 08:54:51 -0700, Winfield Hill wrote:

Phil Hobbs wrote...

I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).

Maybe he saw your picture? and decided to just give up on the whole
thing!
Click to expand...

REALLY! I mean, I've made some crappy looking breadboard monstrocities,
but my EYES still hurt after that one!

Jon
 
On Friday, September 13, 2019 at 11:31:42 AM UTC-4, Phil Hobbs wrote:
I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).

I used to get them from a guy on eBay who called himself BoardWorx, but
he isn't there anymore.

I could lay out some of my own, but I'd rather buy them.

Any suggestions?
Click to expand...

Looks okay to me for a proto. The ebay guy went out of business because somebody better and probably bigger jumped in the game at a cheaper price point.

Thanks

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
Click to expand...
 
On Fri, 13 Sep 2019 11:31:30 -0400, Phil Hobbs wrote:

I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).

I used to get them from a guy on eBay who called himself BoardWorx, but
he isn't there anymore.

I could lay out some of my own, but I'd rather buy them.

Any suggestions?

Thanks

Phil Hobbs
Click to expand...

These guys might have something that will work. I have
not searched their site in a while

http://www.proto-advantage.com/store/index.php


--
Chisolm
Texas-American
 
On Saturday, September 14, 2019 at 1:31:42 AM UTC+10, Phil Hobbs wrote:
I need to replenish my supply of blob board (see e.g.
http://electrooptical.net/www/sed/photoreceiver.jpg>).

I used to get them from a guy on eBay who called himself BoardWorx, but
he isn't there anymore.

I could lay out some of my own, but I'd rather buy them.

Any suggestions?
Click to expand...

Element 14 (used to be Farnell/Newark) seems to have lots. They call them "matrix boards". Here's one example.

http://www.farnell.com/datasheets/2312518.pdf

There seem to be 52 others, all with holes for leaded components.

Throwing "smd" into the search string produced 70 items. Here's one of them.

http://www.farnell.com/datasheets/1648331.pdf

--
Bill Sloman, Sydney
 
On Friday, September 13, 2019 at 11:31:42 AM UTC-4, Phil Hobbs wrote:
I could lay out some of my own, but I'd rather buy them.

Any suggestions?

Thanks

Phil Hobbs
-- :
Click to expand...

How about coming up with a proto type board with an area for bias circuits and an area for RF circuits with some test points for at least the bias circuits.

And then license the design to someone to sell your prototype boards. It does not eliminate your having to layout a board, but it might pay for the annoyance. And you get some boards that hopefully are better than anything on the current market.

When life gives you lemons, make lemonade.

Dan
 
On Fri, 13 Sep 2019 13:50:24 -0700, bloggs.fredbloggs.fred wrote:

> Looks okay to me for a proto.

Agreed. Puts *my* efforts to shame! :-D




--
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On Fri, 13 Sep 2019 09:27:38 -0700, pcdhobbs wrote:

Everybody's a critic.

That's a 12-GHz pHEMT cascoded by a 45-GHz SiGe:C NPN. Size matters.

The visible circuitry is all biasing and stuff.
Click to expand...

Try telling that to this guy:

https://youtu.be/Ea39dHj01yc



--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.
 
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