- Amateur Radio (Ham Radio) Community

Call Search

New to Ham Radio?
My Profile

Friends Remembered
Survey Question

DX Cluster Spots

Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement

Reviews Categories | Transceivers: HF Amateur HF+6M+VHF+UHF models - not QRP <5W | Hy-Gain 3750 Help

Reviews Summary for Hy-Gain 3750
Hy-Gain 3750 Reviews: 5 Average rating: 5.0/5 MSRP: $2450
Description: High-end HF Transceiver with SSB/CW on 160 to 10 meters. Built in Japan for Hy-Gain Electronics Corporation in 1976 & 1977. Modern dual digital displays, notch filter, noise blanker, RIT with tracking display, memory function, speech processor, RF Att & VOX.
Product is not in production.
More info: http://
Email Subscription
You are not subscribed to this review.

My Subscriptions
Subscriptions Help

You can write your own review of the Hy-Gain 3750.

WB2JIC Rating: 5/5 Feb 6, 2013 10:36 Send this review to a friend
Fantastic Radio  Time owned: more than 12 months
I have owned this radio for over 14 years and use it several times a month. I also have the VFO & speaker that I purchased with the rig. Yes, it is heavy, but the rig is still a fantastic piece of equipment. Not many were made or sold. They pop up for sale from time to time. Make sure you get the interconnecting cable as these are a very important component to have. Also the replacement final is the 6LR6. If you see one of these radios grab it.
K5MO Rating: 5/5 Dec 4, 2009 11:23 Send this review to a friend
Big, Heavy, Excellent  Time owned: more than 12 months
I've had my 3750 for a few years now and really enjoy operating it. It's built with top quality parts in a high quality (did I mention heavy?) enclosure, and it's BIG. Still looking for an external VFO and Speaker if anyone has one for sale.

This is a fun and quite capable radio. Well metered and loaded with features.

I agree with other reviews EXCEPT the replacement PA tube is a 6LR6, not the other sweep tube listed. There's a yahoo groups formed around this rig. I have heard only about 300 were sold. I don't know if it's true, but I know there's not too many of them around.

W8IDL Rating: 5/5 Oct 17, 2004 07:27 Send this review to a friend
The BEST of the 1970s  Time owned: more than 12 months
I have owned the Hy-Gain 3750 since new in 1977 and outside of replacing the final amplifier tubes (S2002 aka 6KD6) have never had a problem! This transceiver has it all and performs well even by modern standards. Though it is a "pre-warc" radio, it has a 10 mhz position that can work on transmit as well. It covers 160 meters and there are positions for the addition of two other bands with proper modification. The receiver has a very pleasant agc system and a notch filter that actually works effectively! The sensitivity and dynamic range are more than adequate for serious DXing - the 3750 hears everything my Icom IC-781 hears. The transmitter has a built in speech processor which is adjustable and very effective. It is not a QSK radio, but the T/R switching is very quiet. I have had many radios through the years and this is the only one that has stayed in the shack for the long haul. In addition to its high performance, it is probably one of the best looking transceivers ever to be produced.
WB5TMD Rating: 5/5 Jun 29, 2002 11:56 Send this review to a friend
Great radio  Time owned: 3 to 6 months
I own a HY-GAIN 3750, 3855 VFO, and 3854 spkr. It is an excellent radio, very well built and works great. no drift at all after a 15 minute warm up and 125 watts output. the tubes are listed as S2002 and seem to be a very rugged tube. must have been top of the line back then. WB5TMD
JAMES_BENEDICT_EX_N8FVJ Rating: 5/5 Jun 28, 2002 22:31 Send this review to a friend
Quiet & sensitive Receiver  Time owned: more than 12 months
The Hy-Gain 3750, matching 3855 VFO & 3854 Speaker is an attractive package using heavy gage aluminum panels. The front panel is a dark gold anodized design. The modes are SSB & CW. Band coverage is 160 to 10 meters with WWV 10 mHz receive (did not try xmit). The radio reviewed is model number 100348 possibly suggesting at least 348 were manufactured. Known model years were 1976 and 1977. The radio has dual digital displays reading out to 100 Hz. Tuning is analog with very little drift during a 15 minute warm up. Drift is about nil after 15 minutes during a two hour test period. The receiver is quiet and sensitive with reception on 75 meters during the summer time rated as excellent. The RF output was over 125 watts and the transmitter uses a pair of tubes labeled M-1000. I believe these 12 pin compactitron sweep tubes are 6DK6, but not sure. The optional VFO and the HF transceiver have both an analog and digital display that indicates to 100 Hz. The two digital displays are located on the transceiver. With the optional VFO, one can operate split frequency on the same band. The noise blanker is variable without much function, but reasonably effective. The manual notch filter is effective and allows a more narrow passband for reception of two close-in signals or simply reducing band noise. The speech compressor, RF ATT, VOX, adjustable CW sidetone and fast/slow AGC are excellent. The RIT control has an LED indicator and amount of RIT is displayed on the digital display. The radio comes standard with a 500 Hz CW filter. Considering the era, the radio must have been a top performer. I would rate the radio a 4.5, however either a 4 or 5 was available, thus the five (5). A picture is available at

If you have any questions, problems, or suggestions about Reviews, please email your Reviews Manager.