Search found 29 matches
- Mon Mar 15, 2010 3:17 pm
- Forum: Guides - comments and ideas
- Topic: RE: http://www.pcs-electronics.com/guide_amplifiers.php
- Replies: 1
- Views: 17041
RE: http://www.pcs-electronics.com/guide_amplifiers.php
RE: http://www.pcs-electronics.com/guide_amplifiers.php can I put two times 2sc1972 transisters in this? will the output with two be 28W? What parts would I need to alter/change to get it running two transisters? Can both be ran on the same rail or would they need seperate rails? Basicaly I have two...
- Wed Dec 16, 2009 6:23 am
- Forum: Schematics - help and ideas
- Topic: FM broadcast band ATU
- Replies: 0
- Views: 14386
FM broadcast band ATU
Does anyone know wher I can find shematics of an ATU or a place to purchase a ATU that will cover the FM broadcast band, Have looked everywher
- Wed Jul 22, 2009 7:36 am
- Forum: Off topic!
- Topic: Toner PCB
- Replies: 2
- Views: 20246
- Tue Jul 21, 2009 1:26 pm
- Forum: Off topic!
- Topic: Toner PCB
- Replies: 2
- Views: 20246
Toner PCB
What is the best cheepest laser printer that will take photo paper for making PCB's I dont want to spend more than £100
- Mon Jul 06, 2009 10:30 am
- Forum: FM transmitters
- Topic: How to Test a Transmitter's Power Output?
- Replies: 4
- Views: 11880
- Sun Jul 05, 2009 11:14 pm
- Forum: FM transmitters
- Topic: How to Test a Transmitter's Power Output?
- Replies: 4
- Views: 11880
marko is ther anyway of doing this with a volt meter, was just wondering as i have had lots of troble tuning my VFO home built transmitter. I would get it so i thought it was on the proper frequency (or at least it sounded like it in the house) when i went for a walk 500 yards away the transmision i...
- Sun Jul 05, 2009 10:08 pm
- Forum: Off topic!
- Topic: Earthing
- Replies: 2
- Views: 19043
Thanks marko although I don’t really need to worry to much about lightning as my antenna is not mounted on anything as I live in an apartment and putting antennas of any kind up is strictly prohibited by our housing association, not even allowed a satellite dish or my own TV antenna, what I have don...
- Sun Jul 05, 2009 2:37 pm
- Forum: Guides - comments and ideas
- Topic: low cost Fm transmitter
- Replies: 1
- Views: 20747
- Sun Jul 05, 2009 2:21 pm
- Forum: Off topic!
- Topic: What frq do you ...
- Replies: 14
- Views: 47178
- Sun Jul 05, 2009 1:29 pm
- Forum: Off topic!
- Topic: Earthing
- Replies: 2
- Views: 19043
Earthing
Hi all is it advisable to earth my transmitter to the electricity erth line as i live in a new apartment and they use pvc tubing for the water so there is no copper pipe to earth to
- Fri Jun 26, 2009 3:37 am
- Forum: Off topic!
- Topic: Some cool photos... been playing with macro
- Replies: 4
- Views: 22596
- Fri Jun 26, 2009 3:10 am
- Forum: Off topic!
- Topic: Jingles Adverts Production Effects
- Replies: 12
- Views: 39981
- Fri Jun 26, 2009 1:40 am
- Forum: Off topic!
- Topic: Jingles Adverts Production Effects
- Replies: 12
- Views: 39981
- Thu Jun 25, 2009 9:42 pm
- Forum: Schematics - help and ideas
- Topic: Repeater
- Replies: 0
- Views: 14380
Repeater
how would you make a repeater for the fm braudcast band
- Thu Jun 25, 2009 9:20 pm
- Forum: Schematics - help and ideas
- Topic: I need help regarding what type of transmitter????
- Replies: 1
- Views: 17051
Ok you want to transmit lots of miles. if you had an antenna about 5000 feet above ground you could probably do this with a 4 watt transmitter, i take it an antenna this high is not an option so you will need to look for a transmitter of at least 1kw or more and still have your antenna up high to co...
- Thu Jun 25, 2009 8:24 pm
- Forum: Schematics - help and ideas
- Topic: 2 X 2SC1972's What to do with them
- Replies: 2
- Views: 18061
thanks pcs i did see that erlier but didnt think it was sutable as 2SC1972 is not listed. How would i hook up both the transisters. I was thinking side by side with both transisters B,C,E leading to the same traks on the PCB, Is this logical and if so would the 7 W output of my transmitter drive bot...
- Thu Jun 25, 2009 5:28 pm
- Forum: Schematics - help and ideas
- Topic: 2 X 2SC1972's What to do with them
- Replies: 2
- Views: 18061
2 X 2SC1972's What to do with them
Hi all. I have two new 2SC1972 transistores that im not using. What i would like to know is if any of you know of, or could draw me up some simple schematics, For a 88-108 amp that will use both transistores combined for 28 Watt of output, Or if they canot be combined a schematic for using just one....
- Tue Jun 23, 2009 11:57 am
- Forum: Schematics - help and ideas
- Topic: Sheet steel as shields
- Replies: 1
- Views: 14871
Sheet steel as shields
Hi all.
I was wondering if sheet steel could be used to make RF shields on a PCB or does it have to be alluminium
I was wondering if sheet steel could be used to make RF shields on a PCB or does it have to be alluminium
- Sun Jun 21, 2009 1:49 am
- Forum: Off topic!
- Topic: Jingles Adverts Production Effects
- Replies: 12
- Views: 39981
- Fri Jun 19, 2009 1:25 pm
- Forum: Guides - comments and ideas
- Topic: FM braudcast Band in mtr's
- Replies: 2
- Views: 18047