Model 4145d - 4:1 Upgrade Balun for Drake B-1000
For those of you who own one of the fine tuners manufactured by Drake, this is a balun that can be easily installed on your existing PC board in place of the original windings. If you do not currently own a B-1000 balun, you can elect to mount this balun in perf board and running leads to the mounting studs. Not only do you receive a balun capable of much more power, you also benefit from the enhanced performance this custom winding provides.
The balun comes completely wound with tinned leads and ready to be soldered to the connection pads of your PC board. Only a screwdriver and 100 watt soldering iron are required for installation. If you prefer not to do the installation, Balun Designs can install the uprade for $5.00 additional. Please call to make arrangements.
Note: This listing is for the balun only and does not include the PC board
Please review the test scans below to understand the performance enhancement this balun offers.
|Core Material|| Custom mix low permeability ferrite by Fair Rite Products for maximum bandwidth.
Large 2.4 inch cores are coated and sealed for long term durability.
|Winding Type|| Stacked cores with single bifilar pair configured as 4:1 tuner balun.
Connections configured for external PC board utilized by Drake tuners.
|Winding Material|| 1 bifilar winding of 14 gauge Heavy build polyamideimide Allex 240 Winding Wire.
Windings are inserted into Teflon tubes increasing total breakdown to 10,000 volts.
|Power Rating|| 1 to 35 MHz - 5kW, 7kW intermittent. 35 to 54 MHz - 3kW.
All ratings based on resonant load. High SWR will reduce power handling ability.
|Useable Frequency||1 to 54 MHz|
|Insertion Loss||Less than .01db|
|Connectors||Tinned prebent leads.|
|Additional Info|| Very high efficiency (98-99%).