PGAL parts compatibility list ---- ------------ ------------------ --------- --- ------------------- 1 IC LM317T NS 1 U5 Equivalent parts can be used. ---- ------------ ------------------ --------- --- ------------------- 2 IC TL497ACN TI 1 U6 Typical switching regulator. Other ICs that supplies avobe 10mA can also be used. When you have any power supply that outputs avobe 18 volts, this regurator can be replaced with a 78L15. ---- ------------ ------------------ --------- --- ------------------- 3 IC TC74HC595AP TOSHIBA 2 U1,U2 4 IC TC74HC151AP TOSHIBA 1 U3 5 IC TC4538BP TOSHIBA 1 U4 Standard C-MOS logics. ---- ------------ ------------------ --------- --- ------------------- 6 TRANSISTER 2SA1020 TOSHIBA 2 Q5,Q6 High current swiching transister (requires Ic > 1A, Hfe > 100 and low satulation voltage). This will be replaced with any other power transister. ---- ------------ ------------------ --------- --- ------------------- 7 DIGI-TRA RN2202 TOSHIBA 2 Q3,Q4 8 DIGI-TRA RN1202 TOSHIBA 2 Q1,Q2 Switching transisters with built-in resisters. Their data sheets will be found at the following page. http://www.semicon.toshiba.co.jp/seek/us/td/12stran/120014.htm ---- ------------ ------------------ --------- --- ------------------- 9 DIODE 1S1588 TOSHIBA 1 D1 Typical switching diode. (Io=100mA, Vr=30V) ---- ------------ ------------------ --------- --- ------------------- 10 LED TLG124 TOSHIBA 1 D2 Power indicator. And to keep minimum current limit of the LM317T. ---- ------------ ------------------ --------- --- ------------------- 13 CAPACITOR 47pF(CH) CERAMIC 1 C3 14 CAPACITOR 10nF MYLOR 1 C5 ---- ------------ ------------------ --------- --- ------------------- 16 CAPACITOR 2.2nF CERAMIC 1 C11 ---- ------------ ------------------ --------- --- ------------------- 17 INDUCTOR ELF05221 TDK 1 L1 An inductor (220uH). ---- ------------ ------------------ --------- --- ------------------- 26 TRIM RES. RJ-6P 1k COPAL 1 VR1 27 TRIM RES. RJ-6P 5k COPAL 1 VR2 Typical trimer resisters. ---- ------------ ------------------ --------- --- ------------------- 28 ZIF SOCKET 24pin Eris 1 U7 ---- ------------ ------------------ --------- --- ------------------- 29 CONNECTER XG4C-1031 OMRON 1 CN1 Cable connector.