Amateur Radio Amplifiers

Everything about setting up, operating, and maintaining amateur linear amplifiers

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Last Message
  1. K4OW

    High SWR only when amp (SB-221) is keyed

    K4OW, Jun 15, 2021 at 12:08 AM ... 2 3
    Replies:
    22
    Views:
    296
    K4OW
    Jun 16, 2021 at 2:35 PM
  2. WA4OHZ

    Harbach Soft Start & SB-220/221

    WA4OHZ, Jun 13, 2021 at 4:27 AM
    Replies:
    3
    Views:
    138
    N8VIL
    Jun 15, 2021 at 5:35 AM
  3. KD4JBL

    SB 200 Heathkit Amplifier

    KD4JBL, Jun 10, 2021 at 3:14 PM
    Replies:
    6
    Views:
    245
    WA2EIO
    Jun 13, 2021 at 3:06 PM
  4. K5TS

    AL-82 antenna relay replacement

    K5TS, Jun 9, 2021
    Replies:
    7
    Views:
    185
    K8PG
    Jun 12, 2021 at 5:58 PM
  5. K5FRH

    Opinions Wanted on Sino 811 Tubes ?

    K5FRH, Jun 9, 2021
    Replies:
    4
    Views:
    175
    K0UO
    Jun 15, 2021 at 9:20 PM
  6. ZL1MTO

    Amplifier recommendations please

    ZL1MTO, Jun 9, 2021 ... 4 5 6
    Replies:
    52
    Views:
    1,276
    K6LPM
    Jun 14, 2021 at 10:32 PM
  7. AF2F

    ALS-606 quit

    AF2F, Jun 9, 2021 ... 2
    Replies:
    10
    Views:
    339
    AF2F
    Jun 10, 2021 at 7:12 PM
  8. W8WJC

    IC-7300 and ACOM 1000

    W8WJC, Jun 8, 2021
    Replies:
    4
    Views:
    211
    K4ECA
    Jun 10, 2021 at 1:51 AM
  9. KJ7TZS

    Old tube amps

    KJ7TZS, Jun 7, 2021 ... 2
    Replies:
    14
    Views:
    673
    KD9IQO
    Jun 15, 2021 at 10:14 PM
  10. KK4YDR

    How to drive amp with smaller amp?

    KK4YDR, Jun 7, 2021
    Replies:
    5
    Views:
    239
    WA9UAA
    Jun 9, 2021
  11. JOEM1

    IC 7300 amplifier

    JOEM1, Jun 7, 2021
    Replies:
    5
    Views:
    307
    W4HWD
    Jun 8, 2021
  12. KQ4NM

    Ameritron AL- 572

    KQ4NM, Jun 7, 2021
    Replies:
    2
    Views:
    141
    WB2WIK
    Jun 7, 2021
  13. K6BSU

    Amplifier tuning---Basics?

    K6BSU, Jun 6, 2021
    Replies:
    8
    Views:
    405
    WB2WIK
    Jun 9, 2021
  14. SP9O

    powered amplifier HF Ascom SMPS 48V 1900W /problem in ssb/

    SP9O, Jun 5, 2021
    Replies:
    2
    Views:
    156
    SP9O
    Jun 7, 2021
  15. WA4OHZ

    Anyone using an IC-718 & Heathkit SB-220 amp?

    WA4OHZ, Jun 4, 2021
    Replies:
    8
    Views:
    192
    WA4OHZ
    Jun 6, 2021
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