BG132255171
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BG132255171 24/04/2022
unfortunately they shipped it with the wrong case.
TPA3116 50W*2+100W ブルートゥース5.0 ハイパワーオーディオアンプボード 2.1 サウンドチャンネル ベース スーパーベース デジタルアンプ
US$6.99
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BG132255171 I have no idea how big that coin is.

Ebernuth 18/01/2022
Perfetta. Arriva ben inscatolata e pronta all'uso come promesso. Ha comunque laa.possibilità di binding con altri comandi nel caso si volessero organizzare sfide tra amici. Ottima la funzione di limitazione sterzo ed acceleratore da controller per facilitare l'utilizzo ai più piccoli. Consigliatissima!
Turbo Racing RTR 1/76 2.4G 2WD フルプロポーショナルコントロールミニRCカーライトモデル子供のおもちゃ
US$70.99 US$100.99
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デジタルパワーアンプボード5532フロントパワーアンプトーンエレクトロニクスDIY製作キット
US$10.99 US$12.99

Q: does this come with the transformer?

尋ねた BG132255171 に 2022-05-13 07:46:43

Ebul lience Type: Parts (PCB+components), not includes transformer

2022-05-16 04:36:28 役に立つ (0)
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BG132255171 24/04/2022
haven't used it yet, product as described.
220V 300W LEDリムーバーPTC加熱はんだ付けチップ溶接BGAステーションスプリットプレート
US$12.99 US$15.99
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BG132255171 24/04/2022
mostly as described, unfortunately they shipped it with the wrong case.
AC 12V 1A 6J1 バリュープリアンプチューブプリアンプアンプボードプリアンプヘッドホンDIYキット
US$10.99 US$19.99
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BG132255171 24/04/2022
pretty cool
MustOOL UD24 5V〜32VDC5.5USBテスター2.4インチType-Cデジタル電圧計電流計パワーバンク電圧テスターPD急速充電用電圧計
US$29.00 US$32.00
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BG132255171 24/04/2022
pretty cool
Geekcreit® NodeMcu Lua ESP8266 ESP-12F WIFI 開発ボード
US$6.99 US$16.99
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NE5532 OP-AMPHIFIアンププリアンプボリュームトーンEQコントロールボードDIYキット
US$7.99 US$13.99

Q: to correct an answer given by Archipe Lago to another question in this thread, this device DOES support audio input. Otherwise, it would have no function at all. You can't adjust the tone of an audio signal if there is no audio signal. Audio input is clearly marked on images in the description. There are two audio inputs on this board which I suspect is actually just one with two different connector types. You folks should really learn more about the products you're selling. Secondary to this, 12v-18v ac input is a very strange choice of power source. Folks will need a step down transformer to power this. You all should have just included that in the design. pretty simple. Just a transformer and a smoothing cap in front of this with a resistor or two in series to get current where you need it on the pwr input. To use this, people will have to design their own power supply. not super difficult, but weird.. My question is, what's kind of power in terms of voltage and watts are we looking at in the audio out jacks if I want to run the signal into another board, say.. a tube amp?

尋ねた BG132255171 に 2022-03-25 12:10:31

Zoll verein The general audio uses DC power, while the mains is AC 110-230V. It needs to be stepped down and rectified to supply audio. If you use AC power directly, it will damage the audio components. 12v-18v ac input means AC12V-12V, AC18V-AC18V

2022-03-28 05:27:07 役に立つ (0)
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BG132255171 Nice build. How are you powering it? What kind of power are you measuring on the audio out?

MichalSlansky 06/10/2021
Skvělý produkt za dobrou cenu, doporučuji. 😉
NE5532 OP-AMPHIFIアンププリアンプボリュームトーンEQコントロールボードDIYキット
US$7.99 US$13.99
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BG132255171 post a pic before and after the changes. I think you could have kept the transistors, by swapping for audio quality ones, and bigger smoothing caps, or maybe swapped the smoothing caps for inductors to limit inrush current. but then you'd need a whole different board.

jimmyg3k 12/10/2021
Thank you for fast shipping. This is my first tube project. Love it. Tube amps need very very clean power supply, otherwise, it will hum. I had the same issue. So, I disassembled the board and redesigned in a way that heater supply and cathode supply can be connected individually. Heater can take either AC or DC (6.3v 500m amp each tube OR 12v in series-for two tubes). Removed all voltage boost components (transistors and related filtering caps). Also replaced the components with audio-grade resistors and Jantzen cross caps (1uf, input and output). Heater coil is powered by a 12vDC supply Remaining supply is provided from two 12v batteries connected in series (it makes 24v). The ground connections are re-arranged to reduce humming. Now it works like a charm. Can feel a large improvement in performance Thank you
6J1プリアンプチューブプリアンプアンプステレオAC12V DIYキット
US$15.99 US$19.99
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