[ForSale-Swap] FS: A few more semi-kits and component bundles

[To Possibilities]

After years of designing and building projects, I'm still continuing to 
unwind a ton of items surplus to my current interests. Before I add the 
following items to my  Web site, I thought the following would be of 
interest to the QRP community. Note: All parts New Old Stock with long 
leads etc..

A - SuperSCAF filter Semi-kit

In April 1988, QST published a high performance audio filter called 
SuperSCAF (switched capacitor audio filter) that later was manufactured
commercially as an accessory, used in the QRP Plus by Index Labs etc.

The heart of this audio filter were flexible, high performance AMI S3528 
(low pass) and S3529 (high pass) ICs. Within these chips is a 7th order 
elliptical filter , clock generator, programmable frequency divider and 
a pair of buffer amplifiers. Just a few external parts (e.g. capacitors, 
resistors and a 3.58MHz color-burst crystal)  were required.  A key 
feature of the filter were the ability, using BCD rotary thumb wheel 
switches, to digitally select the filter cut-off frequencies and 
bandpass (i.e. 0327 = 300 - 2400 Hz, 0307 = 300 - 700 Hz etc.).

Additionally, with the 7th order elliptical response, the attenuation 
was quite steep (greater than 50dB at 1.3 times cut-off frequency) 
producing a filter with a great shape factor.

I put together a semi-kit to build a low pass version of the SuperSCAF 
filter. Each kit includes a S3528B, a 4 1/2 digit BCD rotary thumb wheel 
switch and a 3.58 MHz crystal, you just add a hand full of capacitors, 
resistors and power.

Notes:     
The S3528B data sheet is at:

http://www.datasheetarchive.com/preview/2966414.html

http://www.ingelec.uns.edu.ar/pds2803/Materiales/HDatos/AMI/s3528b.pdf

Note that at 3200 Hz the 50 dB+ attenuation is 1.3 the selected cut-off 
frequency (figure 5) and for lower cut-offs, even better (figure 3).

The 4 1/2 digit BCD rotary thumb wheel switch is easily disassembled and 
re-combined into a 2 digit switch.

See April 1988 QST article for additional application information.

Price $9 + shipping.

B - L Network Antenna tuner Semi-kits

L Networks can tune both high (C on hi Z side) or low impedance (C on 
low Z side) loads.

B1 QRP Version: Includes (3) section small air variable (330 pF per 
section, 1 3/16" D x 1 3/16" W x 9/16" H w/ 1/4" dia. x 3/8" L shaft, 12 
position rotary switch (5/8" round x 7/8" D with 1/8" dia. x 1/2" L 
shaft, Amidon T68-2 toroid core, 4' #22 magnetic wire. Also includes 
1/8" to 1/4" shaft adapter  and 2" long shaft extender. Price  $9 + 
shipping.

B2 QRP+ Version: Includes (4) section air variable (20/90/190/20 pF per 
section or 320 pF total, 1 7/16" D x 1 1/8" W x 1" H (plates meshed) w/ 
1/4" dia. x 3/8" L shaft, 12 position rotary switch (5/8" round x 7/8" D 
with 1/8" dia. x 1/2" L shaft, Amidon T80-2 toroid core, 4' #20 magnetic 
wire. Also includes 1/8" to 1/4" shaft adapter  and 2" long shaft 
extender. Price $11 + shipping.

B3 QRO Version: Includes Hammarlund air variable (250 pF per section, 3" 
D x 1 3/4" W x 1" 1/8" H (plates meshed) w/ 1/4" dia. x 1/2" L shaft, 11 
position ceramic rotary switch (1 1/2" round x 7/8" D with 1/4" dia. x 
3/8" L shaft, Amidon T200-2 toroid core, 5' #12 magnetic wire. This 
tuner should be able to handle 100W. Price $19 + shipping.


C -  Bunch of powered iron and ferrite toroids bundle.

(25) miscellaneous Powdered Iron toroidal cores (T25, T30, T37, T44 and
T50 sizes of type -2, -6 and material).

(25) miscellaneous  Ferrite toroidal cores (beads, T37 and T50 sizes)
and binocular cores for RF.

Price (50 total) is $19 + shipping.


D - Large and Small Signal RF Transistor and FET Bundle

(4) 2N3866, (5) 2N5179, (3) 2N3819, (2) J310, (4) 2N4416A, (1) MFE521, 
(1) 3N171, (1) 2N5109, (5) MPF102, (4) 2N5486, (3) 2N5484,
(1) NTE315 (driver for CB), (2) NTE235 50MHz 5 W amp..

Bundle price for 35+ pieces is $23 + shipping.


E - Specialty RF Diodes Bundle

(10) 1N6263 Hot Carrier Diodes (great for diode ring mixers), (4) 
Motorola Varactor Tuning Diodes,  (10)  Pin Diodes (MPN3404), (2) 1N34A 
diodes

Bundle Price (25 pieces) is $9 + shipping (several available)


F - Trimmer Capacitor Bundle

(25) pieces including muRata trimmer capacitors from 20 to 120pF (Black, 
Brown, Red and Green color coded, as frequently used in QRP kits).

Bundle Price (25 pieces) is $14 + shipping (several available)


G - Mica Compression Trimmer Capacitor Bundle

(20) pieces by ARCO etc. from from 20pf to 400pF+. Most are screw driver 
adjust, but some have shafts suitable for knob adjustment.

See http://www.surplussales.com/Variables/Compression/CompCap1.html

Bundle Price (20 pieces) is $16 + shipping.

H - Air Variable Trimmer Capacitor Bundle

(35) pieces, includes slot adjustment and piston types (see below links 
for examples). Values to 25pF.

http://www.surplussales.com/Variables/VariableTrimmers/VarTrimm5.html

http://www.surplussales.com/Variables/PistonTrimmers/PistCap-1.html

Bundle price (35) pieces $20 + shipping.

I - Very nice Audio Amplifier Bundle

The Phillips TDA1015 is a monolithic integrated audio amplifier circuit 
in a 9-lead single in-line (SIL) plastic package. This device was 
especially designed for portable radio and recorder applications and 
delivers up to 4 W in a 4 W load impedance. This unit will run from 3.6 
V to 18 V.

Features single in-line (SIL) construction for easy mounting, separate 
preamplifier and power amplifier offering a total gain of 52dB plus, 
thermal protection, high input impedance, low current drain and low 
distortion. View data sheet at:

http://www.gilanet.com/Ohlandl/76-77/TDA1015.pdf

Bundle Price is (3) for $5 + shipping.


J - Another interesting Audio Amplifier Bundle

The MC34119 (8 pin DIP package) is a low distortion, low power audio 
amplifier integrated circuit that runs over a wide operating supply 
voltage range (2.0 V to 16 V). Features differential speaker outputs to 
maximize output swing at low supply voltages (no output coupling 
capacitor required). Open loop gain is 80 dB, and the closed loop gain 
is set with two external resistors. Gain is adjustable from <0 dB to >46 
dB for Voice Band. Additionally, capacitors can be included in the 
feedback loop to provide frequency band pass filter response (see Fig . 
24-25 in data sheet).

http://www.oselectronics.com/downloads/mc34119.pdf

Bundle price is (3) for $5 + shipping.

K - Digital IC Bundle Over 200 ICs, mostly 74LSXX or 74SXX series.

Includes NAND, NOR, D and JK flip flops, Schmitt triggers, BCD counters, 
binary counters, up/down counters w/ presets, decade counters, LED 
display latch etc..

Bundle price is $19 + shipping.

L - 60 piece molded choke bundle, ~ size of 1/4 W resistor.

Bundle includes at least 2 of each of the following values (.1,1.0, 1.5, 
2.7, 3.3, 3.9, 4.7, 5.6, 6.8, 8.2, 10, 12, 15, 18, 22, 47,56, 68, 100, 
120, 220, 330, 470 and 1000 uH).

Bundle price is $19 + shipping

M - APC variable capacitors.

 (8) Hammarlund APC 75 (75 pF)     Price is $3.25 each + shipping
(12) Hammarlund APC 50 (50 pF)     Price is $3.00 each + shipping
(2)  Hammarlund APC 25 (25 pF)     Price is $3.00 each + shipping
(4)  ABP 10 pF with 1/4" dia x 1 1/4" long shaft    Price is $6.00 each 
+ shipping
(4)  ABP   7 pF with 1/4" dia x 1 1/4" long shaft    Price is $5.00 each 
+ shipping

N - Crystal bundles (Larger types around  1/2" x 1/2"  x 1/4")

N1 - 122.8 MHz, (2) 250 KHz , 500 KHz, 20.6 MHz, 5250 KHz and 10?000 
KHz. Have short pins about 1/2" spacing for socket mounting. Price is $9 
+ shipping.

N2 - 192 KHz, 153.6 KHz, 230.4 KHz, 38.4 KHz, 16.0 KHz  Price is $5 + 
shipping.

O - Transistors, crystals and ICs socket bundle.

Includes (20) transistor sockets (flange mount), (5) crystal sockets for 
FT243 and (10) IC sockets (for 8 and 10 pin round type ICs). Price is 
$19 + shipping.

P - Bundle of ceramic disc capacitors

Over 100 pieces of various values, temperature coefic. and voltage 
rating (to 1,000 V). All with long wire leads. Price is $9 + shipping.

Q - Very interesting JFD variable piston capacitor.

It is marked JFD NMCD679, mounts in 1 1/4" dia hole and has a 1/16" dia 
x 1/2" long shaft. The body is 1/4" round and 2" L. I measured the max 
capacitance at 150 pF and from min. to max C,  is about 40 turns. Turns 
smoothly and I was going to use to build PTO like VFO with these. They 
look like the JFD piston trimmer capacitor MC609Y pictured (lower, left) 
at: http://www.surplussales.com/Variables/PistonTrimmers/PistCap-3.html 
, expect with a shaft. Have (4) available. Price is $5 each + shipping

Please reply off list only.

Ed, W1AAZ

Lots of additional components, kits at:

http://mysite.verizon.net/topossibilities/