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on reserve for Denny R. RL Drake 9-NB Noise Blanker Board for the TR-6 Six Meter Transceiver Removed from Working Radio

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MPN:
9-NB
Shipping:
$10.00 (Fixed Shipping Cost)
  • RL Drake 9-NB solid-state noise blanker board for the classic Drake TR-6 six-meter transceiver. Removed from a working TR-6. Effective against ignition and power-line pulse noise at the 9 MHz IF. Rare vintage ham radio accessory in excellent condition. Ideal for TR-6 restoration or upgrade. Authentic R.L. Drake original part.
  • RL Drake 9-NB solid-state noise blanker board for the classic Drake TR-6 six-meter transceiver. Removed from a working TR-6. Effective against ignition and power-line pulse noise at the 9 MHz IF. Rare vintage ham radio accessory in excellent condition. Ideal for TR-6 restoration or upgrade. Authentic R.L. Drake original part.
$134.99
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Description

This RL Drake 9-NB Noise Blanker Board, is for the TR-6 Six Meter Transceiver. It was Removed from Working Radio.

It appears to be in excellent condition.

This is a VERY Rare and hard to find option for the TR-6.

Information
The Drake 9-NB is a solid-state optional accessory noise blanker designed specifically for the R.L. Drake TR-6 six-meter (50 MHz) transceiver. It installs inside the TR-6 with no special tools required. It blanks strong periodic noise pulses (such as ignition noise or power-line noise) by acting at the 9 MHz IF stage before selectivity that would otherwise stretch the pulses. It is less effective against random noise (atmospheric or contact noise).
 
 
It was an optional add-on (sometimes factory-installed in later TR-6 units). The board uses 16 transistors (including 2 FETs) and 4 diodes. On receive it processes the 9 MHz signal with a delay network, broadband amplifier, and balanced gate controlled by a noise-pulse processor; on transmit the path is switched appropriately. It introduces no significant signal-level loss when engaged.
 
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The unit is considered rare and hard to find today as a standalone board.Specifications
  • Type: Solid-state noise blanker (subchassis/board for internal installation)
  • Compatible radio: Drake TR-6 six-meter transceiver
  • IF frequency: Designed for 9 MHz IF
  • Components: 16 transistors (2 FETs) + 4 diodes
  • Power: Derived from the host transceiver
  • Effectiveness: Strong periodic pulse noise (ignition, power-line); limited on random noise
  • Installation: Internal; no special tools needed
  • Era: Circa late 1960s (associated with TR-6 production ~1968 onward)
  • Form: Chassis/board only (for building into the TR-6)

 

 

 

 

 

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