OSH Park
Profile for texaspyro
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HP10811
by
texaspyro.
2
layer board of
2.90x1.95
inches
(73.69x49.58
mm).
Shared on
June 20th, 2016 04:00.
Outer oven controller for the HP10811 double oven oscillator based upon a design by Warren Sarkison.
The darlington power transistor should have a high beta at the oven current. I used a house-numbered part with a beta of around 1000.
IC1 is a dual op amp like a TL082.
C8 and C9 should be quality, low leakage caps.
R7/R8/R9 can be adjusted for different input voltages and oven currents.
The three pads on the right end of the board are for monitoring test points.
GPS
by
texaspyro.
2
layer board of
2.96x1.96
inches
(75.11x49.83
mm).
Shared on
June 14th, 2016 00:21.
A voltage regulator / RS232 breakout board. Has mounting holes for Adafruit, CN06 (Ublox Neo 6M) and Trimble Resolution-T receivers. Others receivers can be wired to the board.
Silkscreen says CP3232 RS-232 converter chip. These are too picky about their caps. Use a MAX232A with all 0.47 uF caps (MAX232A’s seem to work just fine on 3.3V).
Regulator is any AM1117 compatible fixed regulator.
PWR RAW/REG jumper selects whether the GPS/MAX232A receivers power from the regulator or the input jack.
RS232 PWR jumper connects pin 9 of the RS232 connector to the DC input jack.
PPS polarity jumper selects polarity of the PPS pulse to the RS232 connector.
There is an 8-pin DIP pattern for an ATTINY85, etc processor.
Resolution-T antenna power is wired to Vcc, but there is a place to cut the etch marked on the board along with a hole for providing an alternate source of antenna power.
Osmocom
by
texaspyro.
2
layer board of
1.95x1.95
inches
(49.53x49.53
mm).
Shared on
June 7th, 2016 04:55.
Osmocom LEA-6T GPS timing receiver board from:
http://openbsc.osmocom.org/trac/wiki/osmo-lea6t-gps
CREE MTG/XRE/XML/XPG solder paste stencil
by
texaspyro.
2
layer board of
4.25x1.00
inches
(107.98x25.43
mm).
Shared on
February 6th, 2014 22:35.
Use this for a solder paste stencil for Cree MTG/XRE/XML/XPG leds.
Submit the .BRD file to OSHSTENCILS.COM for an affordable high quality solder paste stencil for manual pasting of LED MCPCBs.
Some discussion here: http://budgetlightforum.com/node/23251?page=2#comment-535059
Nanjg 105C compatible 20mm LED driver
by
texaspyro.
2
layer board of
0.79x0.79
inches
(20.09x20.09
mm).
Shared on
January 25th, 2014 04:05.
20mm Nanjg 105C compatible LED/flashlight driver.
Diode D1 is a BAT54 (be careful of the different versions with various diode arrangements).
C1 is 10 uF
Resistors are 19.1K and 4.7K, 1%
Regulator chips are AMC7135
Processor is ATTINY13 with Nlite or BLF-VLD firmware. Google for more info on this firmware.
LED connects to the L+ and L- holes.
Outer ring is ground, spring pad is +V
The driver mode configuration “stars” are marked on the spring side of the driver. They are tiny through-hole pads.
Discussion thread here: http://budgetlightforum.com/node/28251