Page 71 of HAM Radio 2009 by MFJ Enterprises, Inc.

power supply amplifier transformers ameritron sells eimacr tubes these transformers are for building power supplies and amplifiers 406-3800 is designed for linear power supplies that is capable of delivering current up to 30 amps at 13.6 vdc 4061109-2c is designed for a single 3-500z tube 1000 watts hf amplifier has buck/boost winding can be used as a replacement transformer for heathkit sb-1000 al-80a fig part no price pri voltage a 406-3800 $34.95 120v b 406-1109 $180.00 90-140 205250 w/buck 2c select mfj hard-to-find components for your homebrew projects ameritron sells eimacr tubes for amateur radio broadcast and industrial uses call for a quote a 3cx800a7 b 3cx1200a7 c 3cx1500a7 sec voltg 18v 1 1047vac 2 22 vac ct boost winding 3 5.2vac ct a amplifier power filament transformers specially designed for our most popular hf amplifiers has unique buck-boost winding to adapt to low or high line voltage conditions use of electrical silicone steel lamination makes these transformers highly efficient resulting in low loss and producing less heat well constructed for low noise and coated with varnish 110/220 vac usable for 50 or 60 hz current dimensions weight don t just buy any untested tube that can damage 30a 4wx4lx33/4h 11 lbs .1 adc 6wx6lx51/4h 26 lbs your amp buy ameritron fully tested and 1.5 adc a 380-0811a $24.95 811a tube warranteed tubes 15 aac b 380-0572b $49.95 572b tube match pairs are c 380-0500gt $219.95 taylor also available 3-500zg tube b 811a 572b 3-500zs a b c tube sockets a b c a fig abcde part no 625-8500 625-8199 625-8731-1 625-8800 625-8811 b c d e a b c d weight 17 lbs 14 lbs 23 lbs 33 lbs 32 lbs tube plate caps heatsinks #pin manufacturer pn/description price fit tube type $14.95 3-500z 3cx1200a7 5 custom made glass epoxy socket 9 $2.49 6lq6 or equivalent pcb mount pins 7 $35.00 3cx1500a7/8877 ceramic 11 ef johnson 124-0311-100 $50.40 3cx800a7 $3.20 811a 572b or equiv 4 4-pin ceramic fig part no price pri volt sec volt dim applications a 406-1532 $80.00 110/220 w 1500v 5a 5wx41/4hx61/4d 811a 4-tube buck-boost 12v@1a amplifier 6.5v@16a 33/4wx43/4hx41/2d a 406-1529 $46.56 110/220 v 800v 5a 6mj6 or equiv 12v@1a 6wx51/4hx51/4d b 406-1572 $132.00 10/220 w 900v 5a buck-boost 12v ct@1a 572b,4-tube amp b 406-1248-1 $247.00 10/220 w 2250v 5a 6wx71/2hx51/4d buck-boost 22vct@1.5a 3cx800a7 2-tube amp 12.8v@5a c 406-1418-1d $403.00 110/220 v 2570 vac 8a 8wx7hx7d r 3cx1500a7 hypersil 3cx1200a7 2x3-500g amps 21/2wx3hx33/4d d 406-1419-1j $74.00 110/220 v 5.6v@30a 3-500z filament 14v@2a 21/2wx3hx33/4d d 406-1419-2j $74.00 110/220 v 7.7v@21a 3cx1200a7 filam 14v@2a 21/2wx3hx33/4d d 406-1419-3j $74.00 110/220 v 5.6v@15a 3cx1500a7 filam 14v@2a a fig part no a 750-1800 b 750-0323 c 755-3626 d 755-6811 b 5 lbs 5 lbs 5 lbs a 391-1500 $23.67 chimney for 3cx1500a7/8877 tube b 391-3500 $30.60 chimney for 3cx1200a7 and 3-500z tubes tube glass chimneys price description $5.95 plate cap for 3-500ztubes finned aluminum heat sink with set screw 3/4 dia by 9/16 thick $7.98 plate cap for 3-500z tubes finned aluminum heat sink with set screw 11/4 dia by 5/16 thick $8.28 plate clip for 3cx1500a7/8877 tube $2.50 ceramic plate cap for 811a 572b tubes c d amplifierplates and filament chokes b fig part no a 10-15197 b 10-15144 c 719-7380c d 10-15115-1 a b non-inductive resistors a fig a bbbbcdefb part no 115-5800 113-1220 113-1350 113-1450 113-2100 115-1500 119-1500 755-3080 755-4100 c d price resistance rating $3.00 50 ohm 50 watts $22.50 22 ohm 35w cont $22.50 35 ohm 35w cont $15.00 45 ohm 35w cont $22.50 100 ohm 35w cont $20.16 50 ohm 90w cont $32.31 50 ohm 200w cont .75 2.76 e diameter 1 1 /2x /2 in 3/4 inches 3/4 inches 3/4 inches 3/4 inches 3/4 inches 1 inch f length 2.0 inches 2.5 inches 2.5 inches 2.5 inches 2.5 inches 5 inches 6 inches a d c e e 412-0109 terminal clip for 3/4 dummy load resistor requires 2 per resistor terminal clip for 1 dummy load resistor requires 2 per resistor price description $20.00 complete plate choke covers 1.8-30 mhz includes warc bands 225 uh handles 1.5a 4 kv wound on 1 dia x 55/8 long glazed ceramic form used in ameritron amps $9.66 plate choke covers 1.8 to 30 mhz 1.5a 2kv wound on 1/2 dia by 4 long ceramic form used in most sweep tube amps $7.95 glazed ceramic plate choke form 1 dia by 5 long both ends tap for 1/4 20 screw $19.95 complete broadband filament choke use for 3-500z 3cx800a7 3cx1200a7 and 3cx1500a7 tubes handles 30a covers 1.8-30 mhz 12 gauge enamel wire bifilar wound on .5 dia by 6 long ferrite rod $9.00 filament choke ferrite rod 5 dia by 6 long used in 10-15115-1 feedthru insulators 606-1006 $3.95 ceramic feedthrough insulator comes complete with hardware 3/4 diameter x11/4 fits 7/16 dia chassis hole item a is an rcd 620 wire wound solder terminals attached,2 mounting holes ceramic spacers are used to properly isolate your dummy load resistor from the chassis withstands high power and high frequencies ceramic spacers cooling fans a 5-way binding post nylon insulation 30a 1000 vac 10-32 stub is tin plated brass 606-0013 $2.50 red 606-0014 $2.50 black high output box fans and blowers are ideal for cooling amplifiers a 410-3583 $18.85 80x80x38.5 mm b 1800 rpm 28 cfm 30 dba noise level sleeve bearing 120 vac 60 hz w 14 wire lead c b 410-4584 90 fan guide c 410-3138 $43.06 high quality box fan by ebm metal a 719c-0500c housing with metal impeller $0.50 a b extremely quite 120x120x38.5 1/4 diameter by mm 61 cfm 28 dba 1/2 long 6-32 threaded holes on noise level sleeve bearboth ends ing 120 vac 60 hz wire terminals b 719d-1000c $1.00 d 410-4600 $3.34 1/2 diameter by 1 long 8-32 metal fan guards d e threaded holes on both ends e 410-4586 99 plastic and blowers f g f 410-1200 $64.95 ebm blower g2s097-db61-08 110 vac 51/2wx51/2hx11/2d inches 37 cfm 45 dba noise level wire leads g 410-1100 $39.95 interfan blower pmb24-115-4b 110 vac 43/4wx43/4hx11/4d inches www.mfjenterprises.com · toll-free 1-800-647-1800 71

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