Private pilot reported near midair collision due to not having radios or transponder.

Attributes
ACN	1674684
Time
Date	201908
Local Time Of Day	0601-1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	J3 Cub
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	Direct
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft
Component
Aircraft Component	VHF
Person 1
Function	Pilot Flying
Qualification	Flight Crew Private
Experience	Flight Crew Last 90 Days 70 Flight Crew Total 120 Flight Crew Type 2
Events
Anomaly	Aircraft Equipment Problem Less Severe Conflict NMAC Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 30 Vertical 0

Narrative:

On a high density altitude day; our 65 horsepower cub wasn't climbing very well; but that was okay because we were planning on cruising to the nearest grass strip for landing practice at 500-1000 ft. Anyways. The airplane we were flying had no radios or transponder. We proceeded direct off of our downwind which led us close to the final approach path of the runway we had just taken off of. What appeared to be a cherokee flew past our window to the right at what seemed like 30 ft. Away. My instructor did not notice the airplane. I now have a headset adapter and ptt (push to talk) button for my hand held radio in hopes that this will not happen again.

Original NASA ASRS Text

Title: Private Pilot reported NMAC due to not having radios or transponder.

Narrative: On a high density altitude day; our 65 horsepower Cub wasn't climbing very well; but that was okay because we were planning on cruising to the nearest grass strip for landing practice at 500-1000 ft. anyways. The airplane we were flying had no radios or transponder. We proceeded direct off of our downwind which led us close to the final approach path of the runway we had just taken off of. What appeared to be a Cherokee flew past our window to the right at what seemed like 30 ft. away. My instructor did not notice the airplane. I now have a headset adapter and PTT (Push To Talk) button for my hand held radio in hopes that this will not happen again.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.