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Author Topic: Mods? for a Lafayette HA 410 ten meter tranceiver?  (Read 4925 times)
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Knightt150
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« on: January 05, 2015, 08:58:11 PM »
Hello: I recently acquired a nice HA 410 Lafayette transceiver, has anyone used one of these, and has anyone modified one of these or do they need any mods?

I am looking to replace the audio 6GW8's and some of the caps that might be leaky.

Any other good things to do to this radio?

John W9BFO
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Pete, WA2CWA
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« Reply #1 on: January 05, 2015, 09:03:48 PM »
No mods are needed. You might position a suck-out fan on the top of the case. Input caps to the grids of the modulation/audio output tubes, if they're original, should be replaced. Originals probably had a 5 or 10 year life expectancy. General cleaning; check the power supply components; it gets very hot under the chassis.
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Knightt150
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« Reply #2 on: January 06, 2015, 04:03:15 PM »
Pete: Do you know if there is or supposed to be a parts list in the manual. The manual that came with my HA410 dose not have any.

John W9BFO
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Pete, WA2CWA
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« Reply #3 on: January 06, 2015, 04:19:00 PM »
Quote from: Knightt150 on January 06, 2015, 04:03:15 PM
Pete: Do you know if there is or supposed to be a parts list in the manual. The manual that came with my HA410 dose not have any.

John W9BFO

No, unfortunately, Trio never generated a parts list for either the HA-410 or HA-460. I have the Lafayette microfiche for all service parts but it's really not a parts list and service part numbers won't help you.
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
W3GMS
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« Reply #4 on: January 06, 2015, 04:21:09 PM »
I believe Stephine - WX3K uses one of those on a 6M net she runs.  You may want to contact her and see if she has done anything to hers.  I believe she is very pleased with the rig.

Joe GMS
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Pete, WA2CWA
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« Reply #5 on: January 06, 2015, 04:32:17 PM »
A trick we used with the MC-50 years ago was to slide a toilet paper roll (without the paper) over the head of the mike. You could vary the talk power of the mike by sliding the roll further up or down. For greater audio excursions, use a longer paper roll.
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
Knightt150
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« Reply #6 on: January 07, 2015, 07:56:25 PM »
Hello: Is anyone on the AM FORUM have and is using one of the HA 410 ten meter transceivers?

Thank You
John W9BFO
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Pete, WA2CWA
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« Reply #7 on: January 07, 2015, 08:00:04 PM »
I have and use both the HA-410 and HA-460 transceivers.
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Carl WA1KPD
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« Reply #8 on: January 08, 2015, 10:00:54 AM »
I would love a good squelch mod for my 460
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Carl

"Okay, gang are you ready to play radio? Are you ready to shuffle off the mortal coil of mediocrity? I am if you are." Shepherd
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