PSU for ZX characteristics?

Hello jdigreze > Otherwise, there is a risk of getting blue smoke instead of a good feeder. There is a serious risk of getting the fan humming... :) And it’s big, PTsshny PSU - the 48th will go with something smaller (trans is only needed for 25-28 W at output 7.5 V) Fuse, toggle switch, trans, diode bridge (KTs402 assembly, KTs405), filter (condenser, choke), EH5 as standard (with radiator!), optional - LED... here.

Hello, lvd IMHO, a good PC feeder, you need to load a little more than spec-48... Let's say, by connecting some HDD... Otherwise, there is a risk of getting instead of a good feeder, blue smoke.

Hello, DR ZX DRZ> What current does the 48 Spectrum consume? DRZ> Of course, I'm new to Spectrum and don't know some basic things. DRZ> And according to what scheme is it better to assemble it? Maybe on KR142EH5? DRZ> but it seems to me that it won’t last. Krenka can be powered up with a PNP transistor... But it’s better to go to the control center and buy GOOD food feeder. And there will be no problems in principle.

Hello jdigreze jdi> IMHO, a good PC feeder, you need to load a little more than jdi> spec-48... Let's say, by connecting some HDD... Otherwise there is a risk jdi> get blue smoke instead of a good feeder. Bullshit. A minimum load like half an amp of 5V is enough for all of it The voltage returned to normal and it began to stabilize. Next, about the fan. B good ones are self-regulating (at least with 2-3 steps). For example, I once bought 2 power man's IW-ISP250A3-1 for 600 rubles (ATX). Both I bought it for an Amiga, one is in constant use. Quite heavy, there is even a passive PFC inside (that is, a throttle in series with the rectifier bridge on the primary side). At the entrance filter is not saved. Fan at low loads (including with Amiga - a this is 70 watts) it blows barely cold air, you can’t hear it AT ALL. On myself has a switch. By shorting 2 contacts on the main output connector ceases to be ATX (that is, it is now turned on by that switch). Other used for different devices that consume just about half an amp of 5V (and that's it) - the flight is normal, there is no smoke, etc.

Hello, m.d. md> There is a serious 48th, something miniature will suit (trans is needed md> only 25-28 W with an output of 7.5 V) Fuse, toggle switch, trans, md> diode bridge (assembly KTs402, KTs405), filter (conductor, choke), ЕH5 v md> standard switching on (with a radiator!), optional - LED... md> here. Yeah, and all the network interference from refrigerators and welders is yours. That is, not yours, and your Spectrum. SMPS are effectively decoupled from network interference, so how they themselves generate orders of magnitude more of them (and filter them accordingly) =))