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W-5M

Specifications—Power Output: 25 watts. Frequency Response: ± 1 db from 5 to 160,000 cps at 1 watt. Harmonic Distortion: 1% at 25 watts. Intermodulation Distortion: 1% at 20 watts (60 and 3,000 cps, 4:1). Hum: 99 db below 25 watts. Damping Factor: 40:1. Input voltage for 25 watts output: 1 volt. Tube complement: 2-12AU7, 2-KT66, 1-5R4GY. Output Transformer:Peerless, Special Design. Power requirements: 105-125 volts, 50/60 cycles, 140 watts. Dimensions: 13 3/32" wide x 8½" deep x 8¼" high. Shipping Weight: 31 lbs.

 

These have two versions of Peerless OPTs - 16309 and 16458. The latter is slightly bigger and supposedly have remedied occassional failures in the 16309 (one anode and a U-L tap went open

 

 KD R-core OPT 특성 하고 비슷합니다

Frequency Response: ± 1 db from 5 to 160,000 cps at 1 watt. Harmonic Distortion: 1% at 25 watts

 

 

 

 

 

 

참고로 W4AM 사진 올립니다

 

W4-AM

Specifications—Power Output: 20 watts. Frequency Response: ± 1 db from 10 to 100,000 cps at 1 watt. Harmonic Distortion: 1.5% at 20 watts. Intermodulation Distortion: 2.7% at 20 watts (60 and 3,000 cps, 4:1). Hum: 95 db below 20 watts. Damping Factor: 28.5:1. Input voltage for 30 watts output: 2 volts. Tube complement: 2-6SN7GT, 2-5881, 1-5V4G. Output Transformer: Chicaco Standard, Special Design. Power requirements: 105-125 volts, 50/60 cycles, 115 watts. Dimensions: 15¼" by 8½" shelf space, 7" high (allow 1½" by 15¼" additional shelf space for cables and connections). Shipping Weight: 28 lbs.