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    Radio Shack 61-1065 Digital Timer User Maual

    Can anyone advise where I can obtain a copy of the instruction manual for the Radio Shack 7 day Digital Timer 61-1065? Thank you... Tom
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    Placement of Ammeter in Active LM338 Regulator

    Just having built two 0-13V regulated power supplies and having excellent results with the LM338 regulator, I need to upgrade two older units built with the LM317 in order to get more than 1 amp of output. I have a question on the proper placement of the Ammeter. I understand that the ammeter...
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    Oscilloscope Reticle Alumination Miniature Lamp Availability

    Gentlemen: I have a Phillips PM3335 Scope that has a blown miniature reticle illumination lamp. The number of the existing lamp is M6628V 80Ma. There are lamps on e-bay that look the same, are 28volts but are rated at .04 Amps. I see others from various sources that have ratings of 1 Amp...
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    Transformer Current Output

    Can anyone advise how I can determine (measure or calculate) the current output (in Amps) of a small 120vac/12vac transformer?
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    LM338 Voltage and Power Questions

    Hi: I am building two LM338 variable regulated voltage supplies for my O-Scale 2-Rail Train Layout. Existing transformers Pull 10-13Volts (full on) at an estimated 1.5 Amps. Due to the circuitry, the existing power supplies cut off at 1.0 Amps, so they run but are a little anemic, more so with...
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    Search for Proven Regulated Power Supply Schematic

    I am looking for a proven working schematic for a 4-5 Amp 0-16Volt DC regulated power supply. I have LM338T regulators purchased from Newark (a TI product) to avoid the Chinese knock-off's with poor reputations. I have 2-3 of the various TI spec. sheets but they leave a lot of detail out. I...
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    LM338K Availability

    Hi: I am building two regulated DC power supplies for my O-Scale (2 Rail) layout per the LM138/LM338 data sheet. I have built two 1A DC supplies but they are a little anemic for this larger scale system. I have all the parts and components but am afraid of the e-bay LM338K's. One of the 2 is...
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    Voltage Reduction

    Hi: Can anyone advise how to obtain 12VDC from a Sola Power supply rated at 24VDC? Thank you... Tom
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    Transformer Search

    Gentlemen and Ladies: Just discovered this fine Forum. This is my first Thread. I am building 5A regulated power supplies for my O-Scale 2-rail layout. I have built two using LM317T regulators but need to increase the power, as the existing ones only deliver a little more than 1 Amp @ 12V...
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