$103.99 – 50W Portable Shortwave Power Amplifier with 4-Gear LPF (Banggood, Aliexpress: 50W Portable Shortwave Power Amplifier with 4-Gear LPF Automatic Transmit and Receive Switching Compatible with Multiple Protocols – Black (the best price with coupon)).
When I was updating this page the price was $103.99 for 50W Portable Shortwave Power Amplifier with 4-Gear LPF (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($103.99)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). Is it a low price?
Link: Banggood product page
Price: $103.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG5c814d, BGALL8
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for 50W Portable Shortwave Power Amplifier with 4-Gear LPF? There we go. The lowest price was: $101.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).