RM KL506 HF linear amplifier 3.6–30MHz with preamp – Radioworld UK
RM KL506 HF linear amplifier 3.6–30MHz with preamp – Radioworld UK
RM Amplifiers KL506 60–300W AM FM SSB CW HF amplifier – Radioworld UK
Rear panel connections of RM KL506 HF linear amplifier – Radioworld UK
RM KL506 compact 12–14V HF linear amplifier with 26dB preamp – Radioworld UK
Top view of RM KL506 HF amplifier showing controls and power meter – Radioworld UK
Top view of RM KL506 HF amplifier showing controls and power meter – Radioworld UK
Click the image to enlarge
RM KL506 HF linear amplifier 3.6–30MHz with preamp – Radioworld UK
RM Amplifiers KL506 60–300W AM FM SSB CW HF amplifier – Radioworld UK
Rear panel connections of RM KL506 HF linear amplifier – Radioworld UK
RM KL506 compact 12–14V HF linear amplifier with 26dB preamp – Radioworld UK
Top view of RM KL506 HF amplifier showing controls and power meter – Radioworld UK
Top view of RM KL506 HF amplifier showing controls and power meter – Radioworld UK

RM Amplifiers – Italian Linear Amplifiers for CB & Ham Radio

RM Amplifiers KL506 3.6–30MHz 300W AM/FM/SSB Linear Amplifier with Pre‑Amp

£369.95
(£308.29 exc. VAT)
£379.96
(£316.63 exc. VAT)
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Product code: KL506
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£379.96
12 Months 14.9% APR
£38.00
£32.74
£430.91
£379.96
18 Months 14.9% APR
£38.00
£21.83
£430.91
£379.96
24 Months 14.9% APR
£38.00
£16.37
£430.91
£379.96
36 Months 14.9% APR
£38.00
£10.91
£430.91
£379.96
48 Months 14.9% APR
£38.00
£8.19
£430.91
£379.96
12 Months 19.5% APR
£38.00
£34.05
£446.64
£379.96
18 Months 19.5% APR
£38.00
£22.70
£446.64
£379.96
24 Months 19.5% APR
£38.00
£17.03
£446.64
£379.96
36 Months 19.5% APR
£38.00
£11.35
£446.64
£379.96
48 Months 19.5% APR
£38.00
£8.51
£446.64

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RM KL506 HF linear amplifier 3.6–30MHz with preamp – Radioworld UK

RM Amplifiers KL506 3.6–30MHz 300W AM/FM/SSB Linear Amplifier with Pre‑Amp


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The RM Amplifiers KL506 is a compact, high‑performance HF linear amplifier covering 3.6–30 MHz and supporting AM, FM, SSB, and CW modes. Delivering 60–300W of output power and equipped with a 26 dB preamplifier, it provides a substantial, clean signal enhancement for improved communication performance.

Designed for operation around 27 MHz, the KL506 runs from a 12–14 VDC supply and draws 10–34 A, depending on mode and output level. Built‑in protection features include polarity-reversal protection, a PTT input, and a front‑panel power meter, ensuring safe and reliable operation. A 3 × 12 A fuse bank provides additional electrical safety.

Despite its power capability, the KL506 remains highly compact at 175 × 280 × 65 mm and just 2.2 kg, making it ideal for both mobile and fixed‑station use. A remote control connection adds further convenience for flexible installation.

Reliable, efficient, and easy to integrate, the RM KL506 is a strong choice for operators seeking a versatile HF linear amplifier with solid performance across multiple modes.

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