HF Linear Amplifier RFI Kit - Henry 1K, 2K, 3K, 4K, 5K, 8K - 4 Filters for RF In/Out, AC power, Relay/PTT
Product Details
MPN: RFI-LA-HY
Filter Power Rating (PEP watts): coax cable limit
RFI Suppression Range (MHz): 1-100 MHz
This is a generic linear amplifier RFI kit for AC powered amplifiers. Works on many popular amplifiers including:
ALPHA models – all AC models including 76, 77, 78, 86, 87A, 89, 91B, 99, 274, 374, 8100, 8406, 8410, 9500
AMERITRON models – all AC models including AL80A, AL80B, AL82B, AL572, AL800, AL800H, AL811, AL811H, AL1200
HEATHKIT models – all AC models including SB200, SB201, SB220, SB221, SB230, HA10, HL2200, SB1000
HENRY RADIO models – all AC models including 1K, 2K, 3K, 4K, 5K, 8K
KENWOOD models – all AC models including TL922, TL922A
All AC powered rigs like B&W, Collins, Command, Dentron, Drake, Gonset, Hallicrafters, Hammarlund, Hunter, Icom, Palomar, Palstar, QRO, SBE, Swan, Tokyo Hy-Power, Yaesu
Included are the following chokes and installation guidelines:
RF Input: F240 toroid – 5-9 turns of RG-58 size through center
RF Output: FSB-1 (Big Clamp on) – 3 turns of RG-8 size cable
Relay Cable: FSB-1/2 – multiple turns through choke – ½” diameter hole
AC Power Line: FSB-1 (Big Clamp on) – 3 turns through center
Typical user comment:
The filter was quite effective. Was surprised that it actually reduced the noise level more than the signal so S+N/N improved by 1.9 S units. Bill