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    Stepdown Transformer Turns Vs. Ampere

    In step down transformer is it that Ampere changes in accordance with Turns. I mean to say that in the Table I found:  38 swg wire has 0.0365 amp @ 200 amp per square cm. and 3507 turns per sq.cm. If i wind 4000 turns shall I arrive at 0.042 Ampere that means current increases with increase in...
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    Transistor Substitute.

    Sir,  Can anyone help me finding Replacement of Power Transistors; 2SD613 - NPN , 2SD633 - PNP both complimentary pairs  2SD600  & 2SB631 both complimentary pairs The above are used in power amplifier sections of Sonodyne Model SCR2061. The exact transistors not readily available in...
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    Installation - Free To Air Channels with Gardiner FTA Channel Receiver

    Dear All, Can anyone guide how to install efficiently with Analogue Satellite Finder with Gardiner make FTA receiver. Stepwise instruction will be very helpful. Thanks in advance. electronics_shamim
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    Radio Cassette Corder - Philips DR435 and AKAI AJ W239

    Dear All, Can anyone help me find the above Schematics for Philips Two-in-One Indian origin Model: DR435 and AKAI AJ W239. thanks in advance. Regards Electronics_sham India ====
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    PCB Design Software (Schematic Capture)

    Dear All, Can any one help me for any easy-to-use PCB software with Schematic capture option and libraries (12 Pin SIP) for newbies. Thanks in advance. electronics_shamim ====
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    Easy PCB Design Software (single & double sided)

    Hi everyone, Can any one tell me site for downloading easy PCB design software or what is the easy PCB software available with basic computer knowledge ? Regards, electronics_shamim
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    SANYO MCD 510K

    Dear All, Can any one help me Schematic or Service manual for the model shown below" SANYO Korea : CD Radio Double deck cassette recorder Model: MCD 510K Thanks in advance. truly yours electroncis_shamim ====
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    Service Manual for SANYO MC-S680K, SONY FH-7MK-II, National RX-C46.

    Sirs, I need the following Service Manuals. Any help from any angle is highly appreciated. I tried to locate in www.eserviceinfo.com, but failed. Moreover, in the forum also, response very poor. I find this forum very very helpful. Herewith remain in anticipation: SANYO MC-S680K SONY ...
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    National Stereo Radio Cassette Corder Repair guide.

    Sirs, Can any one help me tips for repair of National make Model No. mutilated form(not known), in which tape section works perfectly ok but radio section totally dead. I donot know exactly what to do, whether selector switch or Band selector switch or some other component gone bad, please...
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    Gang specifications used in FM receiver.

    Sirs, Can any one tell me the Gang parameters required for in the FM receiver set. Can a AM/SW Radio set Gang be used in FM receiver set? Understand AM/SW gang has three terminals. 1st is meant for AM Antenna, 2nd (middle one) ground, 3rd one meant for AM Oscillator. Any idea on this pls let...
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    Sanyo Model: MCD-510K CD Radio Cassette Recorder Schematic pls.

    Sirs, Can anyone help service manual for the double deck CD Cassette Radio Recorder for SANYO Model: MCD-510K please? CD player malfunctioning and nearly dead. It Optical lense gives up after a while 1 sec. or so. reads table of contents starts playing sometimes, if plays only for a second and...
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    Free download sites for Stereo Radio Cassette Recorder Schamatic diagrams.

    Sirs, Can anyone help me out finding out some sites where I can find a particular model of Japan origin schematic diagrams for stereo radio casset corder of different models. This is needed because, it is required since i am into the field of service & maintenance of these. regards...
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    TLO74 applications in Graphic Equalizer/Mixer?

    Sirs, Can anyone has the schemetic complete circuit diagram using TLO74 used in Graphic Equalizer or Mic Mixer Circuit? If possible PCB layout is also highly appreciated. If not, at least use of TLO74 as Graphic Eq. or mic. mixer. regards, Shamim_india.
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    Converting CD-ROM Drive to Audio CD Player/MP3 player!!!

    Sirs, Any idea on how to convert externally (without having PC), a CD-ROM drive of (Samsung 52x) to audio CD player or possibly MP3 player. Simple Powersupply +12V,Gnd, +5V & Gnd. available? Can MPEG card be wired, if so how? Regards, Shamim-India. ====
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    Simple dB meter driver circuit.

    Sirs, Does anyone have complete schematic or part list required for a simple dB meter driver built around transistor/IC? Regards, Shamim-India. ====
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    Design of Stepdown transformer 3 Amp 12VDC from 230V AC mains.

    Sirs, Can anyone help me out finding the design parameters required for making a Stepdown transformer of a rated output of 3 Amp/12VDC from 220V AC mains (in India). viz. AC winding wire turns (swg.), DC winding wire turns (swg), CRGO core type (how to select laminates, which No.), Derive the...
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    Microphone Echo/delay IC datasheet.

    Sirs, Can anyone tell me with datasheet of the easily available Microphone delay/reverbing/echo IC. I need this to fit it unto my Tape Deck at the Mic input? Any suggestions on this front are welcome. Regards, Shamim ====
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    Circuit Diagram Schematic Sites.

    Sirs, I introduce myself as an electronic hobbyist and into the field of repair & maintenance of different branded (Sony, AIWA, Sharp, National) audio products. For this I need often the schematic diagrams of different brands to ease my sorting out problems and ease maintenance etc. Can...
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    TLO74 ??? Dynamic Mic./Cond.Mic. amplifier.

    Sirs, Can any one guide me designing of a low noise, high gain amplifier used for Cassette Tape Head/Dynamic Mic. /Condenser Mic. amplifer? The complete circuit wired around easy to get (in terms of availability) is solicited. Will TLO74 will meet the above parameter requirements...
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    Difference between rms and PMPO

    Sirs, Can anyone clarify the difference between rms value and pmpo calculation, with respect to audio amplifier ICs. ICs datasheet shows 4.5w, whereas the pmpo is written as 40watt. Is it the 10x times of rms? regards, shamim ====
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