# Ampli HF raffredato a liquido

**URL:** <https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234>\
**Category:** Autocostruzione\
**Created:** [7 Gennaio 2026, 1:16pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234 "2026-01-07T13:16:57Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![IK2NBU](https://forum.mountainqrp.it/user_avatar/forum.mountainqrp.it/ik2nbu/32/774_2.png) [@IK2NBU](https://forum.mountainqrp.it/u/IK2NBU)\
**Post date:** [7 Gennaio 2026, 1:16pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234/1 "2026-01-07T13:16:57Z")

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Non è QRP… ma non ho resistito alla tentazione di sperimentare, 73 !

[![](https://forum.mountainqrp.it/uploads/default/original/2X/8/834605a4c6a8cc8dc558718fe8c31f3149b56c4f.jpeg "Work in progress: amplificatore HF-50 Mhz raffredato a liquido") ](https://www.youtube.com/watch?v=d_AzOdONsMk)

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**Author:** ![IU3QEZ](https://forum.mountainqrp.it/user_avatar/forum.mountainqrp.it/iu3qez/32/330_2.png) [@IU3QEZ](https://forum.mountainqrp.it/u/IU3QEZ)\
**Post date:** [9 Gennaio 2026, 12:16pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234/2 "2026-01-09T12:16:18Z")

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Sono curioso di vedere lo scambiatore che andrà sui finali 🙂

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**Author:** ![IK2NBU](https://forum.mountainqrp.it/user_avatar/forum.mountainqrp.it/ik2nbu/32/774_2.png) [@IK2NBU](https://forum.mountainqrp.it/u/IK2NBU)\
**Post date:** [9 Gennaio 2026, 6:47pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234/3 "2026-01-09T18:47:28Z")

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Qui ci sono 2 video (in Inglese) le prime prove di temperatura fatte con la pistale termica, Video 1:

[![](https://forum.mountainqrp.it/uploads/default/original/2X/e/eda2b2d729e1227da37c991a95e97183052dffc0.jpeg "Liquid RF by IK2NBU New 600 watt HF-50 MHz Amp ( Part.1)") ](https://www.youtube.com/watch?v=W_pnNvRc0m8)

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**Author:** ![IK2NBU](https://forum.mountainqrp.it/user_avatar/forum.mountainqrp.it/ik2nbu/32/774_2.png) [@IK2NBU](https://forum.mountainqrp.it/u/IK2NBU)\
**Post date:** [9 Gennaio 2026, 6:47pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234/4 "2026-01-09T18:47:59Z")

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Video 2 🙂 di come ho costruito sia il rack su misura (nel 2019)

[![](https://forum.mountainqrp.it/uploads/default/original/2X/b/b4b5b45d2d409335040b6e293c9f603cad4b522e.jpeg "Liquid RF Part 2 Prepare Rack 3U Customized") ](https://www.youtube.com/watch?v=jDoNMpzByHg)

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**Author:** ![IK2NBU](https://forum.mountainqrp.it/user_avatar/forum.mountainqrp.it/ik2nbu/32/774_2.png) [@IK2NBU](https://forum.mountainqrp.it/u/IK2NBU)\
**Post date:** [9 Gennaio 2026, 6:56pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234/5 "2026-01-09T18:56:28Z")

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ED infine il pallet pronto com 10 filtri di banda HF 50 MHz

 ![Amp_MRF300_ik2nbu](https://forum.mountainqrp.it/uploads/default/original/2X/7/7347a649bd95a06988bfdad22180693bed910b4e.jpeg)

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<div class="post-metadata">

**Author:** ![IU3QEZ](https://forum.mountainqrp.it/user_avatar/forum.mountainqrp.it/iu3qez/32/330_2.png) [@IU3QEZ](https://forum.mountainqrp.it/u/IU3QEZ)\
**Post date:** [11 Gennaio 2026, 5:45pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234/6 "2026-01-11T17:45:21Z")

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Grazie Arnaldo.. In precedenza avevo visto solo scambiatori custom fatti con frese CNC e che mi davano sempre enormi dubbi di tenuta idraulica.  
Questi moduli (creso siano per CPU) credo siano estremamente sicuri…

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**Author:** ![IK2NBU](https://forum.mountainqrp.it/user_avatar/forum.mountainqrp.it/ik2nbu/32/774_2.png) [@IK2NBU](https://forum.mountainqrp.it/u/IK2NBU)\
**Post date:** [12 Gennaio 2026, 5:49pm UTC](https://forum.mountainqrp.it/t/ampli-hf-raffredato-a-liquido/9234/7 "2026-01-12T17:49:19Z")

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Confermo, infatti quelli fresati oltre a costare un botto, prima o poi perdono..