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|
 A121 |
Capacitors Set 1 |
- 60 pcs. ceramic
capacitors 5 pF - 100 pF |
| A122 |
Capacitors Set 2 |
- 60 pcs. ceramic
capacitors 100 pF - 1000 pF |
| A123 |
Capacitors Set 1 |
- 60 pcs. ceramic
capacitors 1000 pF - 33,000 pF |
| B201 |
"Sound Generator" |
- Built and tested
generator of 1200 Hz - 0,3W - 8 Ohms |
| B202 |
"Flasher" |
- Built and tested
flashing LED 5 - 24V |
| B203 |
"Two-colored Flasher" |
- Built and tested
flashing LED with red and green color in sequence |
| B204 |
"10 Running Lights" |
- Built and tested 10
moving lights with IC4017 with transistorized outputs and
allowing connecting 200 LEDs |
| B205 |
"Double Flasher" |
Built and tested 2
flashing LEDs, one after another |
| B206 |
"Timer Relay-1" |
- Built and tested
timer from 2 to 180 sec. With relay output 1A/ 220V -
power supply 10-12V |
| B207 |
"Timer Relay-2" |
- Built and tested
timer from 10 min. to 30 sec power supply 12V . |
| B211 |
" Accumulator Battery Indicator 1"
|
- Built and tested
indicator. Informs about the state of a car accumulator
battery 12V with three LEDs |
| B212 |
" Accumulator Battery Indicator 2" |
- Built and tested
indicator. Informs about the state of a car accumulator
battery and might be used as a voltage meter. |
| B222 |
"Stereo Indicator-1" |
- Built and tested
stereo indicator with 2x5 rectangular LEDs with KA2281
and a panel |
| B223 |
"Stereo Indicator-2" |
-Built and tested
stereo indicator with 5 round LEDs with KA2281 and a
panel |
| B225 |
"Stereo Indicator-3" |
- Built and tested
stereo indicator with 2x5 LEDs situated in "V"
with KA2281 |
|
|
 "Blinking Blue LED" |
- Built and tested
blinking blue LED, current consumption 5 mA and power
supply voltage from 12 to 15 V |
| B301 |
"Rectifying
Circuit 1" |
- Built and tested
rectifying circuit with an input of max. 25 V DC and an
output from 1.5 to 35 V/ 6A. Contains 4 pieces of 1N5408
diodes and a 2000 uF/ 35 V capacitor. The device is
suitable as a power supply of AF amplifier 2x20 W/ 2x22
W/ 2x40W and also as LAN power supply (kit C372) |
| B311 |
"Stabilized Rectifier " |
- Regulated and
stabilized rectifier 2 - 25 V with MAA723 and 2T7235 |
| B315 |
"Stabilizer 5 -32V/ 1A" |
-5 -32V/ 1A - Built
and tested stabilizer board with 7805 5 - 32 V - 1 A |
| B321 |
"Regulator 1" |
- Built and tested
phase regulator using triac KT207 220 V 500 W |
| B322 |
"Regulator 2" |
- Built and tested
phase regulator using triac KT774 220 V 1000 W |
| B323 |
"Regulator 3" |
- Built and tested
phase regulator using triac KT784 220 V 1300 W |
| B324 |
"Regulator-4" |
- Built and tested
phase regulator using triac KT728 220 V 3000 W |
| -B325 |
"Regulator-5" |
- Built and tested
phase regulator using triac BTA12 220 V 2500 W |
| B331 |
"Regulated
Rectifier 1.5 - 35 V/ 1.5 A " |
- Built and tested with
LM317T and 4 pieces of 1N4007 diodes, smooth control of
the output voltage with a trimmer-potentiometer |
| B332 |
"Regulated
Rectifier 3 V/ 4,5 V/ 7,5 V/ 9 V - 1.5 A" |
- Built and tested with
LM317T and 4 pieces of 1N4007 diodes, four fixed
voltages, suitable for powering of a diskman, walkman,
pocket radio cassette player. |
| B333
|
"Regulated
Rectifier 1.5 - 35 V/ 3 A " |
- Built and tested with
two LM317T and 4 pieces of 1N5408 diodesan |
|
|
" Regulated Rectifier 1.2 -
35 V/ 3 A" |
- Built and tested
with LM2576T with potentiometer- ADJ with 4 pieces of 1N5408 |
| B221 |
"Power Indicator" |
- Built and tested.
Power indicator for a speaker with 7 LEDS, 8 transistor
and no extra power supply. |
| B503 |
"Stereo Preamplifier-1 " |
- Built and tested
stereo preamplifier with LA3161 (KA2221) |
| B504 |
"Mono Preamplifier-2" |
Built and tested mono
preamplifier |
| B505 |
"Graphic 5-channel Stereo Equalizer 1"
|
- Built and tested
stereo equalizer with two KA2223 |
| B507 |
"Graphic 5-channel Stereo Equalizer 2"
|
- Built and tested
stereo equalizer with two LA3600 |
| B521 |
"A.F.
Amplifier 5 W" |
- Built and tested AF
amplifier with MBA810 |
| B523 |
"A.F. Amplifier 10 W" |
- Built and tested AF
amplifier with TDA2003 |
| B531 |
" A.F. Amplifier 2x10 W " |
- Built and tested AF
amplifier with TDA2005 |
| B543 |
" A.F. Amplifier 2x20W" |
- Built and tested AF
amplifier with TDA1554 (1555) |
| B555 |
"A.F. Amplifier 2x22W" |
- Built and tested AF
amplifier with TA8210 |
| B566 |
" A.F. Amplifier 2Х40W" |
- Built and tested AF
amplifier with TDA8560Q |
| B575 |
"A.F. Amplifier 100 W" |
- Built and tested AF
amplifier with TDA7294 with high quality electrolytic
capacitors |
| B601 |
"Three-voice siren " |
-Built and tested
transistor siren |
| B606 |
" Piezosiren 110db" |
- Built and tested
power two-tone siren for piezospeaker for voltage from 4
to 12 V, current consumption at 9 V is 6 mA, and at 12 V
- 8 mA |
| B611 |
"Alarm" |
- Built and tested
|
| B704 |
"FM предавател 1"
|
- Built and tested
radio microphone with a battery connector |
| B707 |
"Mini FM Transmitte-1" |
- Built and tested
(very small, size 9/25 mm) with 9V battery connectorV
|
| B710 |
"FM Transmitter 2" |
- Built and tested
radio microphone with a battery connector |
| B724 |
" Preamplifier with a microphone " |
- Built and tested
preamplifier with an electrets microphone. Could be used
as an "electronic ear", mobile microphone, etc. |
| B807 |
"Term regulator 3" |
- Built and tested for
an incubator, output with a relay and a power supply of
12 V |
| B833 |
"Inverter 220 V - 1" |
Built
and tested inverter 220 V for a luminescent lamp up to 40
W |
| B835 |
"Inverter 220 V - 2" |
Built and tested
inverter 220 V for a luminescent lamp up to 40 W |
| B904 |
"
100 Running Lights" |
- Built and tested |
| B909 |
"Christmas
Tree" |
- Built and tested
Christmas tree with 23 LEDs, 2 ICs, and 9 V battery
connector |
| B950 |
"Frequency
Meter" |
-
Built and tested frequency meter up to 50 MHz |
| B951 |
"Digital
Scale" |
-
Built and tested frequency meter - digital scale for a
transceiver or broadcast radio receiver |
| B981 |
"EEPROM
Programmer - 1" |
- Built and tested
EEPROM programmer: 24C00,01,02,04,08,16,32,64,128,256,512: 25010,20,40,80,128,160,256,320,520,640:2913,14,19,22,29,34: 33C80,101,104,116,204,704: 35C80,102,108,116,204: 59C11,13,22: 6420: 7005,7: 85C72,82,92: 93C08,13,14,45,46,46X,56,56X,66,66X,67,86: NVM3060: P2100R: PDG011: CXK1011,12,13: SDA2506,16,26,46,86:
S24H30,45: S24S45: TC89101,102: X24C00,44 |
| C1001 |
"Metal Detector "BRUTUS" |
- Built and tested
fully functional metal detector from the middle class.
Metal detector for small objects, such as coins. |
| C1103 |
Stabilized Adapter 3 V/ 0.4 A |
- Built and tested
stabilized adapter (kit B332) in a box. Output voltage 3
V/ 400 mA. Suitable for powering walkmans, radio
receivers and other similar devices with this voltage and
current |
| C1104 |
Stabilized Adapter 4.5 V/ 0.6 A |
- Built and tested
stabilized adapter (kit B332) in a box. Output voltage
4.5 V/ 600 mA. Suitable for powering diskmans, radio
receivers and other similar devices with this voltage and
current |
| C1109 |
Stabilized Adapter 9 V/ 0.4 A |
- Built and tested
stabilized adapter (kit B332) in a box. Output voltage 9
V/ 400 mA. Suitable for powering radio phones, radio
receivers and other similar devices with this voltage and
current |
| C323 |
"Regulator 3" |
- Built and tested
regulator 0 - 220 V 1300 W in a adapter box |
| C371 |
"Power Supply for LANs 60 V " |
- Built and tested
power supply in a box for LAN terminals. Max input
voltage is 60 V DC. Output voltage is from 5 to 15 V DC.
Built with LM2575HVT |
| C372 |
"Power Supply for LANs 40 V " |
- Built and tested
power supply in a box for LAN terminals. Max input
voltage is 40 V DC. Output voltage is from 5 to 15 V DC.
Built with LM2575T |
| C391 |
|
|
"Current Rectifier 1" |
- Built and tested
stabilized current rectifier in a metal box 13.6V/ 2A |
| C392 |
|
|
|
- Built and tested
stabilized current rectifier in a metal box 13.6V/ 3A |
| C606 |
"Piezosiren 110db" |
- Built and tested
with 60 W piezospeaker |
| C611 |
"Alarm" |
- Built and tested in
a box |
| C740 |
"Stationary VHF Antenna with Amplifier
" |
- High efficiency
antenna in 88-108 MHz band with vertical polarization
/with additional power supply/ 25db |
| C741 |
" Car Antenna Amplifier 88 - 108 MHz"
|
- Built and tested in
a box and with connectors for car cassette player 20 dB
|
| C743 |
" Car Cassette Player Filter"
|
- Built and tested in
a box |
| C766 |
"Test Device for Remote Control Units"
|
- Universal test
device for remote control units in a box and with sound
and light signal, power supply - from 9V battery |
| C813 |
"Dark - Light Relay" |
- Built and tested in
a box photo relay for an automatic turning on of the
lights at getting dark. The power supply voltage is 200
V, and the relay output is for 1 А. |
| C901 |
"
Blitz - 1" |
- Built and tested in
a box Blitz effect with a xenon lamp and a power supply
of 12V/ 300 mA |
| C903 |
"
Blitz - 2" |
- Built and tested in
a box Blitz effect with two xenon lamps and a power
supply of 12V/ 300 mA |
| C971 |
"Morse
Key " |
- Built and tested
Morse key based on PIC microcontroller and 4 memories |
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dobrikit@dir.bg
