Search found 117 matches
- Sat Nov 15, 2008 2:49 pm
- Forum: General Discussion
- Topic: Cross referencing RCA semiconductors
- Replies: 8
- Views: 5209
- Thu Nov 13, 2008 11:03 am
- Forum: General Discussion
- Topic: Cross referencing RCA semiconductors
- Replies: 8
- Views: 5209
Cross referencing RCA semiconductors
Hi, Which number does one use to cross reference an RCA semiconductor? The item in question is a transistor; RCA stock # 174374 and drawing # 1417405-004. This is the UHF prescaler Q103 in an MTT009 tuner in an RCA ctc 130 chassis. The transistor is noisy and emits horizontal white streaks in the pi...
- Sun Nov 09, 2008 10:50 am
- Forum: General Discussion
- Topic: Sanyo VHR-9406 Capstan Motor Assembly......
- Replies: 2
- Views: 1743
- Sun Nov 09, 2008 10:45 am
- Forum: General Discussion
- Topic: P87LPC764FN question
- Replies: 9
- Views: 3775
- Sat Nov 08, 2008 2:43 pm
- Forum: General Discussion
- Topic: P87LPC764FN question
- Replies: 9
- Views: 3775
- Sat Nov 08, 2008 7:46 am
- Forum: General Discussion
- Topic: P87LPC764FN question
- Replies: 9
- Views: 3775
This topic is in follow up to my ATV ignition question that I posted back on Sept. 14 http://forum.servomagazine.com/viewtopic.php?t=8410 I managed to pick out and remove all the silicone potting compound that the CDI ignition module was buried in in an attempt to fix it. I succeeded in that the onl...
- Sat Nov 08, 2008 6:48 am
- Forum: General Discussion
- Topic: P87LPC764FN question
- Replies: 9
- Views: 3775
- Fri Nov 07, 2008 1:38 pm
- Forum: General Discussion
- Topic: P87LPC764FN question
- Replies: 9
- Views: 3775
P87LPC764FN question
Hi, Can anyone tell me what function a P87LPC764FN chip would be performing in an ATV CDI ignition module?
- Sun Oct 26, 2008 8:14 am
- Forum: General Discussion
- Topic: Infrared LED / Phototransistor circuit needed
- Replies: 7
- Views: 3410
To answer all the questions, the project I have in mind is an electronic mouse trap. I would like to take an ordinary spring loaded mouse trap and improve on it. Infrared beam so the mouse does not see it and is not afraid of it and a solenoid to release the spring loaded killing bar. As for solenoi...
- Sat Oct 25, 2008 4:30 pm
- Forum: General Discussion
- Topic: Infrared LED / Phototransistor circuit needed
- Replies: 7
- Views: 3410
Infrared LED / Phototransistor circuit needed
Hi, Can someone draw up a simple circuit using an infrared LED / Phototransistor pair either cannibalized from an old VCR or new units preferably from Digi-key or other supplier that sells/ships to Canada? I want the circuit configured so that when the beam is interruped, a small solenoid is activat...
- Sun Sep 14, 2008 5:37 pm
- Forum: General Discussion
- Topic: Incandescent lamp longevity at half rated voltage
- Replies: 18
- Views: 8120
The reason I asked this question is that I got tired of replacing the 15 watt bulbs in the exit signs in my church. They would burn out every 2 or 3 months. Since there are 2 bulbs in each sign, I decided to rewire the 2 bulbs in series and increase the wattage of the bulbs to get the same brillianc...
- Sat Sep 13, 2008 5:15 pm
- Forum: General Discussion
- Topic: Incandescent lamp longevity at half rated voltage
- Replies: 18
- Views: 8120
Incandescent lamp longevity at half rated voltage
Hi, Can someone tell me what the life expectancy of a 25 watt 120 volt AC 1000 hour bulb is when operated at 60 volts AC? I will explain why I would like to know this information in my next post.
- Sat Sep 13, 2008 5:11 pm
- Forum: General Discussion
- Topic: ATV ignition system
- Replies: 12
- Views: 5302
I received the new CDI module yesterday. Shipping was slow as molasses in January. I installed it and the ATV works perfectly; in fact it runs better now than it did before. I assume some component must have been failing for a while and that also explains why the ATV stalled for me and would not res...
- Tue Sep 09, 2008 5:20 am
- Forum: General Discussion
- Topic: ATV ignition system
- Replies: 12
- Views: 5302
- Sun Sep 07, 2008 9:39 am
- Forum: General Discussion
- Topic: ATV ignition system
- Replies: 12
- Views: 5302
Hi, As Ceasar mentioned, you need to click on the picture after it downloads to expand it and it will come up large and clear. The ignition module is the unnumbered square directly below #4 the magnetor. I have 12 volts coming in on the R/W wire, the B wire is grounded properly, I connected a dmm to...