HF LINEAR AMPLIFIER PROJECT
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품 명 |
규 격 |
구 입 처 |
가 격 |
비 고 |
| 진공관 | 4CX800A X 2개 = $105 |
ebay (KW TUBES) | $105 | |
| 4CX800A X 2개 = $76 |
ebay |
$76 |
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| 진공관 소켓 | Used SK-1 | radio | $09 | |
| SK-1 | ebay | $34 | ||
| CHIMNEYS | 구로공구상가에서 테프론파이프(70Ø x 10t x 150 x 2개) | 신화전재상사 | 46,000 | |
| PLATE 전원 트랜스 |
Core: C-core, 1차전압: 210 - 220 -
230, 2차전압: 1770 - 2125 - 2500VAC @ 1.5A |
신신전기(02) 2272-0440 | 350,000 | |
| 필라멘트L & BIAS 트랜스 | 1차전압:210 -
220 - 230, 2차전압:12.6 @ 8A 150V @0.1A |
신신전기(02) 2272-0440 |
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| 콘트롤 트랜스 | ||||
| 정류기(완성품) | FULL WAVE BRIDGE 4.5KVDC @ 2A | HV-2($40) | 52,000 | 완성품 |
| 정류기 | 다이오드: P600M(6A) X 24개 | MAX-GAIN ($10) | 13,500 | |
| 평활콘덴서 | 23uF/4000V oil condencer | 헨리라디오($70) | 200,000 | 송료 $50 포함가격 |
| 40uF/5000v oil condencer | ebay(KW TUBES) | $ | ||
| 브리더저항 | 30K X 30W wire wound X 10ea | 원동전자 | 1500 | |
| PLATE VARIABLE CAPACITOR | 5KV 100PF, 0.2" spacing. 7.5" x 3" x3" | 서찬우(HL5IL) | 25,000 | |
| 30-215PF/6000V/95x95x250mm | ebay | $20 | ||
| 25-150pf with .160" spacing between plates for use up to 5800 volts. Overall dimensions.. 4.75"l x 2.6"h x 2.75"w. Part #M150 | CTIcomTec.com PARTS | $45.00 |
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It is rated a total of 188 PF at Full Mesh and appears to have a
very high voltage rating with 1/4 inch spacing. It is about 1 foot
long, with two seperate sections.
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Nationwide Radio & Eq. Sales LLC | $46.00 | ||
| 20-145pf, 0.125"/4500V. 6.773"(Cat. No 154-15-1) | TypeE Single Section specifications | |||
| 32-241pf, 0.125" space/4500V, 10" (No 154-16-1) | TypeE Single Section specifications | |||
| 15-100 x Dual section, 0.125" space/4500V
9.72" (No 154-510-1)
Mr. Kang,
The unit price is US$125.86. We normally ship UPS, but we will use any carrier you prefer. We accept credit cards such as MC, VISA and AMEX or wire transfers. There is an additional $10.00 bank charge for wire transfers. Thank you, Paul Meyer Cardwell Sales |
CARDWELL Johnson Capacitor Division TypeE Dual Section specifications |
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| LOAD VARIABLE CAPACITOR | 350PF/4500V/간극 0.07"(용량 부족분은 고압 세라믹콘덴서, 50-100pf/10kv로 보강 | 헨리라디오($35) | 45,500 | |
| Load capacitor 용량보강 콘덴서 | 50-100pF / 7.5KV 세라믹 | |||
| T/R SWITCH | Kilovac HC-1, 7A @ 32Mhz, 1.5Kv @32Mhz, Time: 8ms, Coil 전압: 24~26VDC | MAX-GAIN($32) X 2EA | 84,000 | |
| DPDT Coax relay | 헨리라디오($100) | 135,000 | ||
| Band Switch | 5P 11 through | MAX-GAIN($100) | 135,000 | |
| Plate DC block capacitor | 680pf 20kv | ebay($13) | 20,000 | |
| 0.001uF X 10KV (used in QRO, COMMNAND AMP) (capacitor - high voltage plate coupling & by pass) |
RF Parts Capacitors($1.65 each) | 9,100 | $6.6 | |
| MURATA 2700pF, 30 KV, 2.3” OD x 1” L | RF Parts Capacitors | $29.95 | ||
| Tank Coil | L1: 1/4"은도금 튜브, 직경 2" X 길이 5" | |||
| L2 : | Ohsaudio | 49,000 | ||
| AWG #12 동선 0.5m 및 두께 0.5mm 넓이 5mm 길이 0.5mm 은도금 | ||||
| Plate choke | 1.8-30 MHz Amateur Bands including WARC. Ideal for amplifiers using 811A, 572B, 813, 833, 3-500Z, 8877, 3CX800A7, etc. Used extensively in the Ameritron and similar Linear Amps. 1.5A, 225 uH, 4 KV max Size: 5 5/8” L x 1” diameter Ceramic coil form Part Number: RFC-3 • $22.95 ea. |
RFPART ($22.95 each) | 32,000 | |
| Spurious Supressor choke | Part number P300 : 0.3uH/3000ma for 1-30 Mhz | RF Parts Company ($15.95) | ||
| DCV 메터 | 0 - 5000V | Simpson Electric | ||
| 서광계측기 | ||||
| 0 - 3000V | 대붕전기 | |||
| DCA 메터 | 0 - 300mA, 0 - 1.5A | Simpson Electric | ||
| 서광계측기 | ||||
| 0 - 1.5A | 대붕전기 | |||
| Power/SWR 메터 | Enclosure: 6.0 x 4.0 x 2.0 inches | LDG Electronics Inc. | $154.00 | |
| Blower | KB-202(220V/26W, 1.53M3/min) | KUMILMOTOR | 25,00 | |
각 제조자별 증폭기 외형 치수
| 제조사 | W"(mm) | D"(mm) | H"(mm) | |
| QRO | 20(508) | 19(483) | 8(203) | |
| COMMANDER | 18(457) | 16(406.4) | 7.75(197) | |
| ACOM | 17.25(438) | 17.75(451) | 7(178) | |
| ALPHA | 17.3(440) | 16.5(420) | 7.5(190) | |
| TEN-TEC | 17(431.8) | 19(482.6) | 8.2(208.3) | |
| TEST | (470) | (440) | (200) | |
| HL5NLQ | (510) | (500) | (210) | |
| HL5NLQ-1 | 450 | 460 | 250(350) | RF 및 전원부를 상하로 분리(전원부) |
Designing Amplifier
Perfect Amplifier (from Measures' Web Page BY AG6K)
Improved Anode-Circuit Parasitic-Suppression For Modern Amplifier-Tubes BY AG6K
SM 5 BSZ - Building High Power Amplifiers , OR Building High Power Amplifier by SM5BSZ
How to achieve the required low "C" for 2 X
4CX800A
It is more difficult to achieve the required low "C"
for an output network tuning capacitor with two tubes than with a single
tube simply because one must account for the output capacitance of TWO
tubes instead of one. In the case of 2 X 4CX800A the output capacitance is 22 pF
(11 pF x 2) plus circuit strays ... Does this check out? ... .. -
The optimal load R for one tube is 2500V/2(0.8A) = 1600 ohms. To achieve a Q of 10, the reactance of the tune-C should be 1600/10 = 160 ohms of Xc- - which at 29MHz is 34pF. Since the tube contributes 11pF, an additional 22pF of tune C would be needed.
The optimal load R for two tubes is 2500V/2(1.6A) = 800 ohms. To achieve a Q of 10, the reactance of the tune-C needs to be 800/10 = 80 ohms of Xc - - which at 29MHz is 68pF. Since the tubes contribute 2*11=22pF, an additional 68 -22 = 44pF of tune C would be needed.
The optimal load R for ten tubes is 2500V/2(8A) = 160 ohms. To achieve a Q of 10, the reactance of the tune-C would have to be 160/10 = 16 ohms of Xc - which at 29MHz is 340pF. Since ten tubes contribute 110pF, an additional 220pF of tune C would be needed.
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Schematic Diagram
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